1775
The first bomb was invented in 1281 A.D.
The first time bomb was invented at Yale University. It was invented by David Bushnell and used in the first submarine used in combat.
It was not discovered (technologies are never discovered). Leo Szilard invented and patented it in London in 1934.
Leo Szilard invented the atomic bomb & reactor in 1933 as an improved means of transmuting elements. His 1934 patent on this invention also made claims for use in explosives or power generation.
Leo Szilard invented the atom bomb in 1933 and patented it in 1934. Nobody discovered it. It took over a decade after the patent to build the first ones.
The atomic bomb was not invented by a project, it was invented by Leo Szilard in 1933.However the Manhattan Project built the first ones in 1945.
He first invented the stink bomb
Since Leo Szilard invented the atomic bomb in 1933 in London and patented it in 1934, I would have to say it was invented in England. But he was unable to build it at the time.It took another 12 years and a gigantic investment in industrial infrastructure before the US was able to build the first ones based on this patent.
The hydrogen bomb was invented by a team of American scientists led by Edward Teller. The first successful test of the hydrogen bomb was conducted by the United States in 1952.
The US .
1850's
The Hydrogen Bomb .