There were no atomic weapons in World War 1, they hadn't been developed then- I think you must mean World War 2. The first bomb, to be dropped on Hiroshima, was named 'Little Boy'- the one dropped on Nagasaki was called 'Fat Man'. The 'Little Boy' bomb was so named because it was the first ever nuclear weapon of it's kind to be used in combat, and in time would lead to nuclear weapon development 'growing up' to bigger and more devastating bombs- it was probably also as a kind of sick irony, since the last thing it was was 'little'!! The 'Fat Man' bomb was so named because of it's shape- round and fat with a boxed tail.
the world war
None. The first atomic bomb was dropped decades after World War 1 finished. Atomic bombs weren't used in war until World War II.
Atomic bombs- Zero.
no
hiroshima and nagasaki Japan
They ended World War 2 in all of the world.
World War 2 with the atomic bombing of the Japanese cities Hiroshima and Nagasaki.
drop of atomic bombs on Japen
usa
Hiroshima and Nagasaki
atomic bomb
Only the US.