{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"XAL154651","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"francesca_piero_della_c_1415_92","item_category5":"balown","item_list_name":"search_results","item_name":"view_of_an_ideal_city_or_the_city_of_god_c_1480_1490_oil_on_panel","item_variant":"undefined"},{"item_id":"XJF137089","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"charles_darwin_a_venerable_orang_outang_1871_pencil_and_charcoal_on_paper","item_variant":"undefined"},{"item_id":"XIR173030","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"thevenin_charles_1764_1838","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_jean_baptiste_de_monet_chevalier_de_lamarck_1802_03_oil_on_canvas","item_variant":"undefined"},{"item_id":"XJF137417","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_charles_darwin_1881_b_w_photo","item_variant":"undefined"},{"item_id":"BAL41047","item_category":"illustration","item_category2":"undetermined_copyright_usa","item_category3":"standard","item_category4":"kandinsky_wassily_1866_1944","item_category5":"not_balown","item_list_name":"search_results","item_name":"counter_weights_1926_oil_on_canvas","item_variant":"undefined"},{"item_id":"XCF267453","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"collier_john_1850_1934","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_charles_darwin_1883_oil_on_canvas","item_variant":"undefined"},{"item_id":"XIR161060","item_category":"illustration","item_category2":"undetermined_copyright_usa","item_category3":"standard","item_category4":"kandinsky_wassily_1866_1944","item_category5":"balown","item_list_name":"search_results","item_name":"accent_on_rose_1926_oil_on_canvas","item_variant":"undefined"},{"item_id":"CHT316934","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"circle_demonstrating_colour_differences_and_contrasts_1861_colour_litho","item_variant":"undefined"},{"item_id":"CHT235107","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_claudius_galenus_c_130_c_201_ad_oil_on_canvas","item_variant":"undefined"},{"item_id":"STC195004","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"fry_roger_eliot_1866_1934","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_john_maynard_keynes_1883_1946_oil_on_canvas","item_variant":"undefined"},{"item_id":"XJF271660","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"darwin_s_bird_observations_litho_b_w_photo","item_variant":"undefined"},{"item_id":"KWE285363","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"charles_darwin_litho","item_variant":"undefined"},{"item_id":"BAL28119","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"hannah_robert_1812_1909","item_category5":"not_balown","item_list_name":"search_results","item_name":"william_harvey_1578_1657_demonstrating_to_charles_i_his_theory_of_the_circulation_of_the_blood_1848_","item_variant":"undefined"},{"item_id":"MCA178428","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"mucha_alphonse_marie_1860_1939","item_category5":"not_balown","item_list_name":"search_results","item_name":"plate_38_from_documents_decoratifs_1902_colour_litho","item_variant":"undefined"},{"item_id":"PWI108578","item_category":"illustration","item_category2":"undetermined_copyright_usa","item_category3":"standard","item_category4":"kandinsky_wassily_1866_1944","item_category5":"not_balown","item_list_name":"search_results","item_name":"composition_1929_oil_on_canvas","item_variant":"undefined"},{"item_id":"XIR159271","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_15th_century","item_category5":"balown","item_list_name":"search_results","item_name":"anatomical_diagram_from_de_arte_phisicali_e_de_cirurgia_by_john_arderne_1412_vellum","item_variant":"undefined"},{"item_id":"BMR231188","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_3469_christ_holding_a_globe_with_the_four_elements_from_the_physics_by_aristotle_384_322_bc_pen_i","item_variant":"undefined"},{"item_id":"HST166836","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"kupka_frantisek_1871_1957","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_yellow_scale_1907_oil_on_canvas","item_variant":"undefined"},{"item_id":"CHT162794","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"reisch_gregor_d_1525","item_category5":"not_balown","item_list_name":"search_results","item_name":"allegory_of_arithmetic_from_margarita_philosophica_by_gregor_reisch_1503_woodcut","item_variant":"undefined"},{"item_id":"NHM261695","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"sensory_homunculus_plaster","item_variant":"undefined"},{"item_id":"EHT369465","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"charles_darwin_w_c_on_paper","item_variant":"undefined"},{"item_id":"XIR178310","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"greuze_jean_baptiste_1725_1805_school_of","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_marie_jean_antoine_nicolas_de_caritat_1743_94_marquis_of_condorcet_oil_on_canvas","item_variant":"undefined"},{"item_id":"ACD163710","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"french_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"henry_louis_le_chatelier_1850_1936_c_1900_b_w_photo","item_variant":"undefined"},{"item_id":"CHT307486","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_13th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_2200_f_115v_the_world_according_to_aristotle_miniature_from_de_philosophia_mundi_by_guillaume_de_","item_variant":"undefined"},{"item_id":"XJF323027","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"austrian_photographer_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"baroness_mary_vetsera_c_1880s_b_w_photo","item_variant":"undefined"},{"item_id":"TRI98487","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"collier_john_1850_1934_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"thomas_henry_huxley_1825_95_etched_by_leopold_flameng_1831_1911_1885_etching","item_variant":"undefined"},{"item_id":"CHT5927","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"faustin_faustin_betbeder_1847_1914","item_category5":"not_balown","item_list_name":"search_results","item_name":"cartoon_of_darwin_with_an_ape_from_the_london_sketch_book_april_1874_vol_1_no_4_colour_litho","item_variant":"undefined"},{"item_id":"BAL42828","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"eimmart_georg_christoph_ii_1638_1705","item_category5":"not_balown","item_list_name":"search_results","item_name":"celestial_map_of_the_planets_coloured_engraving","item_variant":"undefined"},{"item_id":"LLE817635","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"european_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"karl_marx_1818_1883_german_philosopher_economist_historian_and_political_theorist_colour_litho","item_variant":"undefined"},{"item_id":"NUM117807","item_category2":"undetermined_copyright_usa","item_category3":"standard","item_category4":"klee_paul_1879_1940","item_category5":"not_balown","item_list_name":"search_results","item_name":"untitled_colour_composition_c_1914_w_c_and_pencil_on_paper","item_variant":"undefined"},{"item_id":"LRI662320","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"greek_school","item_category5":"not_balown","item_list_name":"search_results","item_name":"bust_of_democritus_bronze","item_variant":"undefined"},{"item_id":"GOD141580","item_category":"illustration","item_category2":"in_copyright","item_category3":"premium","item_category4":"godlewska_de_aranda_izabella","item_category5":"not_balown","item_list_name":"search_results","item_name":"colour_energy_13_oil_on_canvas","item_variant":"undefined"},{"item_id":"EHT369659","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"sharples_ellen_1769_1849","item_category5":"not_balown","item_list_name":"search_results","item_name":"charles_aged_six_and_catherine_darwin_oil_on_canvas","item_variant":"undefined"},{"item_id":"XIR217859","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"toulouse_lautrec_henri_de_1864_1901","item_category5":"balown","item_list_name":"search_results","item_name":"theory_of_elephants_1896_pencil_on_paper_b_w_photo","item_variant":"undefined"},{"item_id":"ELD4859414","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"representation_of_the_philosopher_rationalist_islamic_theologian_jurist_mathematician_and_muslim_doc","item_variant":"undefined"},{"item_id":"CHT237241","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"stodart_george_j_d_1884","item_category5":"not_balown","item_list_name":"search_results","item_name":"james_clerk_maxwell_1831_79_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"STC366141","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"german_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"karl_marx_photogravure","item_variant":"undefined"},{"item_id":"PVD1684265","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"isaac_newton_dispersing_light_with_a_glass_prism_1874_engraving","item_variant":"undefined"},{"item_id":"CND115398","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_14th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"dissection_from_the_abdomen_of_a_cadaver_from_liber_notabilium_philippi_septimi_francorum_regis_a_li","item_variant":"undefined"},{"item_id":"FOG108674","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"whistler_james_abbott_mcneill_1834_1903","item_category5":"not_balown","item_list_name":"search_results","item_name":"nocturne_in_grey_and_gold_chelsea_snow_1876_oil_on_canvas","item_variant":"undefined"},{"item_id":"XIR222490","item_category":"illustration","item_category2":"undetermined_copyright_usa","item_category3":"standard","item_category4":"klee_paul_1879_1940","item_category5":"balown","item_list_name":"search_results","item_name":"castle_garden_1919_no_188_w_c_on_primed_paper_on_cardboard","item_variant":"undefined"},{"item_id":"BLT237127","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"galois_evariste_1811_32","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_2108_f_4_writings_on_the_conditions_for_solving_an_equation_by_radicals_1832_pen_and_ink_on_paper","item_variant":"undefined"},{"item_id":"ELD4838881","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"isaac_newton_1642_1727_english_mathematician_physicist_and_astronomer_finds_the_theory_of_gravitatio","item_variant":"undefined"},{"item_id":"XLA3768924","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"scottish_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"adam_smith_s_an_inquiry_into_the_nature_and_causes_of_the_wealth_of_nations_1819_print","item_variant":"undefined"},{"item_id":"NHM3532988","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"charles_darwin_digital_photo","item_variant":"undefined"},{"item_id":"CHT327014","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"christ_surrounded_by_the_four_elements_vellum","item_variant":"undefined"},{"item_id":"XLA3751974","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school","item_category5":"balown","item_list_name":"search_results","item_name":"sir_isaac_newton_and_the_theory_of_gravity_liebig_card_print","item_variant":"undefined"},{"item_id":"PFH2561693","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"germany_goethe_s_symmetric_colour_wheel_with_reciprocally_evoked_colours_zur_farbenlehre_theory_of_c","item_variant":"undefined"},{"item_id":"BMR207873","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"title_page_of_elements_de_la_philosophie_de_newton_by_francois_marie_arouet_voltaire_1694_1778_amste","item_variant":"undefined"},{"item_id":"XRH1700252","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_photographer_20th_century","item_category5":"balown","item_list_name":"search_results","item_name":"albert_einstein_and_georges_lemaitre_abbot_1933_b_w_photo","item_variant":"undefined"},{"item_id":"NHM1450035","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"elliott_and_fry_photography_studio_1863_early_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"charles_robert_darwin_taken_at_down_house_1881_b_w_photo","item_variant":"undefined"},{"item_id":"TRI224387","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lonsdale_james_1777_1839_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_john_dalton_1766_1844_engraved_by_c_turner_engraving","item_variant":"undefined"},{"item_id":"CHT223718","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"pythagoras_c_580_500_bc_discovering_the_consonances_of_the_octave_from_theorica_musicae_by_franchino","item_variant":"undefined"},{"item_id":"BLT200464","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"illustration_from_de_homine_figuris_by_rene_descartes_1596_1650_published_in_the_hague_1662_engravin","item_variant":"undefined"},{"item_id":"CHT237248","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"albert_einstein_1911_b_w_photo","item_variant":"undefined"},{"item_id":"ACD184319","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"french_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_henri_leon_lebesgue_1875_1941_b_w_photo","item_variant":"undefined"},{"item_id":"XJF271657","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"darwin_s_insect_collection_b_w_photo","item_variant":"undefined"},{"item_id":"CHT163644","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"frontispiece_of_the_discours_de_la_methode_followed_by_la_dioptrique_les_meteores_et_la_geometrie_by","item_variant":"undefined"},{"item_id":"CHT163647","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_17th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"illustration_from_la_dioptrique_by_rene_descartes_1596_1650_following_the_discours_de_la_methode_fir","item_variant":"undefined"},{"item_id":"MCA178419","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"mucha_alphonse_marie_1860_1939","item_category5":"not_balown","item_list_name":"search_results","item_name":"plate_33_from_documents_decoratifs_1902_colour_litho","item_variant":"undefined"},{"item_id":"CHT316933","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"signac_paul_1863_1935","item_category5":"not_balown","item_list_name":"search_results","item_name":"application_of_the_cercle_chromatique_of_charles_henry_1889_colour_litho","item_variant":"undefined"},{"item_id":"CHT322567","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"jacquand_claude_1804_78_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"rene_descartes_1596_1650_illustration_from_le_plutarque_francais_ny_e_mennechet_published_in_paris_1","item_variant":"undefined"},{"item_id":"NUM117578","item_category":"illustration","item_category2":"undetermined_copyright_usa","item_category3":"standard","item_category4":"kandinsky_wassily_1866_1944","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_three_ovals_1942_oil_on_canvas","item_variant":"undefined"},{"item_id":"UIG2626014","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"unknown_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_maynard_keynes","item_variant":"undefined"},{"item_id":"JLJ4563548","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"flameng_francois_1856_1923","item_category5":"not_balown","item_list_name":"search_results","item_name":"pascal_with_desargues_presents_to_descartes_his_experiences_on_the_gravity_of_the_air_19th_century_o","item_variant":"undefined"},{"item_id":"NUM117513","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"albers_josef_1888_1976","item_category5":"not_balown","item_list_name":"search_results","item_name":"variation_in_red_and_orange_around_pink_ochre_plus_two_reds_1948_oil_on_canvas","item_variant":"undefined"},{"item_id":"PFH3431952","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"chinese_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"china_a_starving_peasant_family_victims_of_the_disastrous_economic_policies_of_the_great_leap_forwar","item_variant":"undefined"},{"item_id":"MCA178463","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"mucha_alphonse_marie_1860_1939","item_category5":"not_balown","item_list_name":"search_results","item_name":"study_for_plate_59_from_documents_decoratifs_1902_pencil_w_c_and_white_on_paper","item_variant":"undefined"},{"item_id":"EHT369456","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"evstafieff_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"darwin_in_his_study_oil_on_canvas","item_variant":"undefined"},{"item_id":"NCO1203412","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"newton_isaac_1642_1727","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_new_coll_361_2_fol_45v_drawing_of_the_so_called_crucial_experiment_that_shows_light_from_the_sun_","item_variant":"undefined"},{"item_id":"XIR170400","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"blanqui_madame_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"portrait_of_louis_auguste_blanqui_1805_81_c_1835_oil_on_canvas","item_variant":"undefined"},{"item_id":"LMG123073","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"riley_bridget_b_1931","item_category5":"not_balown","item_list_name":"search_results","item_name":"winter_palace_1981_oil_on_linen","item_variant":"undefined"},{"item_id":"NUM117576","item_category":"illustration","item_category2":"undetermined_copyright_usa","item_category3":"standard","item_category4":"kandinsky_wassily_1866_1944","item_category5":"not_balown","item_list_name":"search_results","item_name":"two_black_lines_1930_oil_on_panel","item_variant":"undefined"},{"item_id":"CHT237235","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"niels_bohr_1885_1962_c_1922_b_w_photo","item_variant":"undefined"},{"item_id":"NUM396496","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"cross_henri_edmond_1856_1910","item_category5":"not_balown","item_list_name":"search_results","item_name":"in_the_shade_1902_oil_on_canvas","item_variant":"undefined"},{"item_id":"CHT173231","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_paul_langevin_1872_1946_b_w_photo","item_variant":"undefined"},{"item_id":"XJF294044","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"titlepage_to_on_the_origin_of_species_by_charles_darwin_published_in_1859_litho_b_w_photo","item_variant":"undefined"},{"item_id":"BMR231189","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"ms_3469_philosopher_holding_a_globe_with_the_four_elements_from_the_physics_by_aristotle_384_322_bc_","item_variant":"undefined"},{"item_id":"MCA178418","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"mucha_alphonse_marie_1860_1939","item_category5":"not_balown","item_list_name":"search_results","item_name":"plate_28_from_documents_decoratifs_1902_colour_litho","item_variant":"undefined"},{"item_id":"CHT223929","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_16th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"empedocles_c_490_435_bc_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"CHT237247","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"manuel_henri_1874_1947","item_category5":"not_balown","item_list_name":"search_results","item_name":"albert_einstein_c_1920_30_b_w_photo","item_variant":"undefined"},{"item_id":"PFH3431950","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"unknown_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"teams_of_peasants_labouring_on_a_communal_farm_during_the_great_leap_forward_b_w_photo","item_variant":"undefined"},{"item_id":"CHT164093","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"demarle_alphonse_1826_1896","item_category5":"not_balown","item_list_name":"search_results","item_name":"evolution_of_man_from_mammals_from_la_creation_naturelle_et_les_etres_vivants_by_doctor_jules_rengad","item_variant":"undefined"},{"item_id":"PIX4634393","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"multivers_multiverse_multiverse_universe_nes_des_fluctuations_du_vide_multiple_universes_emerged_in_","item_variant":"undefined"},{"item_id":"XJF359013","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"allen_joseph_1770_1839_after","item_category5":"balown","item_list_name":"search_results","item_name":"john_dalton_engraved_by_william_henry_worthington_c_1814_engraving","item_variant":"undefined"},{"item_id":"XJF438455","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"lock_and_whitfield_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"charles_robert_darwin_b_w_photo","item_variant":"undefined"},{"item_id":"XJF294039","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"charles_darwin_s_study_at_down_house_1882_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"PFH1176043","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"spain_al_andalus_imaginary_debate_between_ibn_rushd_averroes_and_porphyry_of_tyre_monfredo_de_monte_","item_variant":"undefined"},{"item_id":"CHT163747","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"galois_alfred_fl_1840","item_category5":"not_balown","item_list_name":"search_results","item_name":"evariste_galois_1811_32_1848_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"MTN246850","item_category":"photo","item_category2":"no_copyright","item_category3":"premium","item_category4":"lotte_meitner_graf","item_category5":"not_balown","item_list_name":"search_results","item_name":"max_planck_1858_1947_b_w_photo","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"theory","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":2497,"search_results_page_number":1}