| DATE: | EVENT: |
| Jan. 12, 1945 | American forces liberate the Philippines. |
| Jan. 20, 1945 | Franklin Roosevelt is sworn in as President for a 4th term. |
| Jan. 20, 1945 | Harry Truman is sworn in as the 34th Vice President of the United States. |
| Apr. 12, 1945 | Harry Truman is sworn in as the 33rd President of the United States. |
| Jun. 26, 1945 | The United Nations is established. |
| Jul. 12, 1945 | American forces take Okinawa. |
| Aug. 6, 1945 | The United States drops the 1st atomic bomb on Hiroshima, Japan. |
| Aug. 9, 1945 | The United States drops the 2nd atomic bomb on Nagasaki, Japan. |
| Sep. 2, 1945 | Japan unconditionally surrenders to the United States, ending World War II. |
| Jul. 4, 1946 | The Philippines, a United States protectorate, gains its independence. |
| Oct. 1, 1946 | Nazi war criminals receive sentencing at the Nuremberg trials. |
| Oct. 17, 1946 | Beginning of the Cold War. |
| Jan. 20, 1949 | Harry Truman is sworn in as President for a 2nd term. |
| Jan. 20, 1949 | Alben Barkley is sworn in as the 35th Vice President of the United States. |
| Apr. 4, 1949 | North Atlantic Treaty Organization (NATO) is established by Belgium, Canada, Denmark, France, Great Britain, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, and the United States. |
| Jun. 25, 1950 | The Korean War officially starts as North Korea invades South Korea. |
| Jun. 27, 1950 | The United Nations declares war on North Korea. |
| Nov. 1, 1952 | The United States detonates the 1st thermonuclear device. |
| Jan. 20, 1953 | Dwight Eisenhower is sworn in as the 34th President of the United States. |
| Jan. 20, 1953 | Richard Nixon is sworn in as the 36th Vice President of the United States. |
| Jan. 20, 1957 | Richard Nixon is sworn in as Vice President for a 2nd term. |
| Jan. 21, 1957 | Dwight Eisenhower is sworn in as President for a 2nd term. |
| Jan. 3, 1959 | Alaska is the 49th state admitted to the Union. |
| Aug. 21, 1959 | Hawaii is the 50th state admitted to the Union. |
| Jan. 20, 1961 | John Kennedy is sworn in as the 35th President of the United States. |
| Jan. 20, 1961 | Lyndon Johnson is sworn in as the 37th Vice President of the United States. |
| Apr. 17, 1961 | An American backed Cuban invasion force landed at Bay of Pigs. |
| Oct. 14, 1962 | American spy planes spot Soviet missile bases on Cuba. |
| Oct. 22, 1962 | The Soviet Union pulls its missiles out of Cuba. |
| Nov. 1, 1963 | American/Vietnamese forces stage a coup in Vietnam. |
| Nov. 22, 1963 | Lyndon Johnson is sworn in as the 36th President of the United States. |
| Jul. 2, 1964 | Segregation is now abolished in the United States. |
| Aug. 4, 1964 | Vietnamese forces attack an American Destroyer (USS Maddox). |
| Aug. 7, 1964 | The United States begins military presence in Vietnam. |
| Jan. 20, 1965 | Lyndon Johnson is sworn in as President for a 2nd term. |
| Jan. 20, 1965 | Hubert Humphrey is sworn in as the 38th Vice President of the United States. |
| Mar. 16, 1968 | American forces take My Lai. |
| Jan. 20, 1969 | Richard Nixon is sworn in as the 37th President of the United States. |
| Jan. 20, 1969 | Spiro Agnew is sworn in as the 39th Vice President of the United States. |
| Jul. 20, 1969 . | American astronaut Neil Armstrong is the 1st human to walk on the Moon |
| Apr. 30, 1970 | American forces invade Cambodia. |
| Dec. 31, 1970 | The United States begins removing troops from Vietnam. |
| Jan. 20, 1973 | Richard Nixon is sworn in as President for a 2nd term. |
| Jan. 20, 1973 | Spiro Agnew is sworn in as Vice President for a 2nd term. |
| Jan. 27, 1973 | The United States and Vietnam sign a peace treaty, ending the Vietnam War. |
| Mar. 29, 1973 | The last of American forces leave Vietnam. |
| Dec. 6, 1973 | Gerald Ford is sworn in as the 40th Vice President of the United States. |
| Aug. 9, 1974 | Gerald Ford is sworn in as the 38th President of the United States. |
| Dec. 19, 1974 | Nelson Rockefeller is sworn in as the 41st Vice President of the United States. |
| Jan. 20, 1977 | Jimmy Carter is sworn in as the 39th President of the United States. |
| Jan. 20, 1977 | Walter Mondale is sworn in as the 42nd Vice President of the United States. |
| Nov. 4, 1979 | Iranians seize the American Embassy in Tehran, Iran taking 52 people hostage. |