Very Eurocentric article. This dude https://en.wikipedia.org/wiki/Zu_Chongzhi https://en.wikipedia.org/wiki/Zu_Chongzhi found in the fifth century AD that π

Very Eurocentric article. This dude https://en.wikipedia.org/wiki/Zu_Chongzhi https://en.wikipedia.org/wiki/Zu_Chongzhi found in the fifth century AD that π lands between 3.1415926 and 3.1415927, using Liu Hui's algorithm on a 12288-gon: https://en.wikipedia.org/wiki/Liu_Hui%27s_%CF%80_algorithm#Later_developments https://en.wikipedia.org/wiki/Liu_Hui%27s_%CF%80_algorithm#L... He also discovered the 355/113 approximation over a millennium before the Europeans: "[H]owever milü π = 355/113 could not be found in any Greek, Indian or Arabian manuscripts, not until 1585 Dutch mathematician Adriaan Anthoniszoon obtained this fraction; the Chinese possessed this most extraordinary fraction over a whole millennium earlier than Europe." (First article above quoting scholar Yoshio Mikami) Also: https://en.wikipedia.org/wiki/Liu_Hui%27s_%CF%80_algorithm#Significance_of_Liu_Hui's_algorithm https://en.wikipedia.org/wiki/Liu_Hui%27s_%CF%80_algorithm#S...