{"category":null,"date":{"calendar":null,"day":7,"day_url":"https://kogda.com/7-fevralya","month":2,"text":"7 февраля 1832 года","year":1832,"year_url":"https://kogda.com/1832"},"id":117575,"kind":"event","library":[],"license":"Тексты: Русская Википедия, CC BY-SA 4.0. Люди и места: Wikidata, CC0.","mentions":[],"people":[{"name":"Николай Лобачевский","slug":"nikolaj-lobachevskij","url":"https://kogda.com/p/nikolaj-lobachevskij"}],"places":[],"related":[],"slug":"nikolaj-lobachevskij-predstavlyaet-akademii-nauk-pervyj-1832","source":{"license":"CC BY-SA 4.0","name":"Русская Википедия","url":"https://ru.wikipedia.org/wiki/7_февраля"},"summary":null,"text":"","title":"Николай Лобачевский представляет Академии наук первый труд по неевклидовой геометрии","url":"https://kogda.com/e/nikolaj-lobachevskij-predstavlyaet-akademii-nauk-pervyj-1832","weight":100}