1950

Events

• Albert Einstein warns that nuclear war could lead to mutual destruction.
  (This is a comment on the Cold War, which saw two counties compete for power and influence over the world from 1947 to 1991.)

• Astronomer Jan Oort postulates the existence of an orbiting cloud of planets (the "Oort cloud") at the outermost edge of the Sol System.

1949

[[20th Century]] 1950s

1951