There are records of the Mongols using bombs against the Japanese as early as 1281 AD. The Chinese are commonly credited with the invention of the first form of gunpowder, Black Powder, but there is no definitive date or accreditation for that.
The first bomb was invented in 1281 A.D.
In 1281 , A Bomb Destroyed The Chinese Fleet And Saved The Japanese From Attack .
615230 -1281 = 613949
1281/3=427 427/7=61 1281=3x7x61
0.0055
MCCLXXXI is 1281 in Roman numerals.
The cast of Rs-1281 - 2014 includes: Aranzazu Diez as Rs-1281
The Hydrogen bomb.
1, 3, 7, 21, 61, 183, 427, 1281.
you need 31 forty ones to get 1281.
It is: 1281/45 = 427/15 simplified
If that is a Colt Ace model .22, then it was made in the 1st year of production which was 1931.