Respuesta :

cafa1988

Answer:

The first one was when Soviet Union declared the creation of atomic bomb and then victory of communism in China.

Explanation:

  • In August 1949 the first atomic bomb in Soviet Union was detonated.
  • They have been working on the creation of bomb since 1946.
  • In October of 1949 the Communist leader in China declared victory and creation of National Republic of China.