From Halopedia, the Halo wiki
1945 was a year in the 1940s in the 20th century.
- The first human nuclear bombs are dropped on Nagasaki and Hiroshima, signalling the end of World War II.
- The United Nations is formed on Earth.
- Halo Encyclopedia (2009 edition) - Chapter One: Timeline, Galactic Rebirth And The Covenant, page 31