4 ms·
Popularity contests are infamous truth sources. Pythagoreans likely originated the "[equilateral] triangular" number formula, but an unpublished astronomical tr
by downvotetruth 4y ago
Popularity contests are infamous truth sources. Pythagoreans likely originated the "[equilateral] triangular" number formula, but an unpublished astronomical treatise by the Irish monk Dicuil in about 816 is the first known written.