< Events that happened in #onthisday #otd #history #twitterstorians #dh
Historical events when someone or something
discovered
.
Sorted by importance.

`whenYear` >='-3000'
AND `whenYear` <='3000'
AND
ORDER BY `whenYear` ASC, `whenMonth` ASC , `whenDay` ASC
LIMIT
0
,
200

1796
that every positive integer is representable as a sum of at most three triangular numbers
...
750827
the construction of the heptadecagon
...
750824
in 1796
regular polygon can be constructed by compass and straightedge if and only if the number of sides is the product of distinct Fermat primes and a power of 2
...
750823
1962
1911
1988
1927
1911
1722
1802
1882
1781
1618
1922
1660
1869
1953
1899
-47
1493
1497
1513
1493
1492