Memory Alpha       36,546pages on     this wiki      This decade
on Earth was marked by the Second World War. Germany under Nazi
rule had fronts against England and the USSR. With the attack on
Pearl Harbor, the USA entered the War from which they emerged
victorious and were established as a world superpower for
centuries to come. Harry S. Truman became president after the
death of Franklin D. Roosevelt and remained in office during the
decade. In alternate timelines the outcome was radically
different, with Nazi Germany conquering much of the world.
The end of WWII was followed by the Earth Cold War, which lasted
until the late-1980s.      Not surprisingly, scientific
breakthroughs on Earth are centered on warfare, such as heavy
water experiments, the atomic bomb (utilizing the principles of
nuclear fission and/or nuclear fusion) and the V-2 rocket.
In the field of art and entertainment, the films For Whom the
Bell Tolls and Abbott and Costello Meet Frankenstein were
released, along with stories fe