President Truman announced to the people of America that they successfully developed a hydrogen bomb.
Harry S. Truman signs the Marshall Plan.
Harry Truman delivers first‑ever presidential speech on TV.
President Harry Truman signed the National Security Act.
President Harry Truman opened the two-lane White House bowling alley.
The Truman doctrine is proclaimed.
US President Harry Truman officially proclaimed the end of World War II.