{"category":"invention","date":{"calendar":null,"day":21,"day_url":"https://kogda.com/21-oktyabrya","month":10,"text":"21 октября 1824 года","year":1824,"year_url":"https://kogda.com/1824"},"id":158246,"kind":"event","license":"Тексты: Русская Википедия, CC BY-SA 4.0. Люди и места: Wikidata, CC0.","mentions":[],"people":[],"places":[],"related":[],"slug":"anglichanin-dzhozef-aspdin-zapatentoval-portlendskij-cement-1824","source":{"license":"CC BY-SA 4.0","name":"Русская Википедия","url":"https://ru.wikipedia.org/wiki/21_октября"},"summary":null,"text":"","title":"Англичанин Джозеф Аспдин запатентовал портлендский цемент","url":"https://kogda.com/e/anglichanin-dzhozef-aspdin-zapatentoval-portlendskij-cement-1824","weight":20}