1h 25min, jan 1, 1048 y - Omar Khayyam 1048 – 1131
Description:
A poet, philosopher and scientist, Khayyam calculated the length of a year to the most accurate value ever, and showed how the intersections of conic sections can be utilized to yield geometric solutions of cubic equations.Added to timeline:
Date:
1h 25min, jan 1, 1048 y
Now
~ 977 years ago
