41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
8340928
794574
2
Public Timelines
FAQ

jan 1, 263 - 中国刘徽发明割圆术,得π=3.1416

Description:

263年中国刘徽发明割圆术,得π=3.1416

Added to timeline:

By
2 May 2023
1
0
386

Date:

jan 1, 263
Now
~ 1764 years ago