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First Atomic Bomb
During World War II, the first Atomic Bomb was created and built in Los Almos, New Mexico. Los Almos was soon approved as the main atomic bomb laboratory on this date. -
Dedication of the Jefferson Memorial
The Jefferson Memorial was dedicated by Franklin D. Roosevelt on the 200th Anniversary of Jefferson's Birth. -
D-Day
The largest seaborne invasion in history. -
Incident at Port Chicago
Two ships loaded ammunition at the Port Chicago Station in California, and they exploded leading to the death of around 300 people. -
Battle of Okinawa
American troops invaded Okinawa which began the Battle of Okinawa that would continue for a couple months -
Death of President Franklin D. Roosevelt
President Franklin D. Roosevelt led Harry S. Truman to leave his role as Vice President and become President of the United States until 1953. -
The Truman Doctrine
Basically states that the United States will provide support to the countries that were threatened by the Soviet forces. -
The Korean War
The war was fought between North and South Korea for three years. -
New President
Dwight D. Eisenhower was elected as the 34th President of the United States.