The longest serving president was Franklin Delano Roosevelt who served 4 terms and a total of 12 years 1 month and 8 days as the president of the United States.n March 21, 1947 America passed the twenty-second amendment (Amendment XXII) to the United States Constitution and it was ratified by the requisite number of states on February 26, 1951 which limited the term any one person can serve as President.
The United States dropped atomic bombs on the Japanese cities of Hiroshima and Nagasaki in August 1945, during the final stage of the Second World War.The two bombings, which killed at least 129,000 people, remain the only use of nuclear weapons for warfare in history.he United States dropped atomic bombs on the Japanese cities of Hiroshima and Nagasaki in August 1945, during the final stage of the Second World War.
On this day in 1945, a second atom bomb is dropped on Japan by the United States, at Nagasaki, resulting finally in Japanâs unconditional surrender. The devastation wrought at Hiroshima was not sufficient to convince the Japanese War Council to accept the Potsdam Conferenceâs demand for unconditional surrender.n this day in 1945, a second atom bomb is dropped on Japan by the United States, at Nagasaki, resulting finally in Japanâs unconditional surrender. The devastation wrought at Hiroshima was not sufficient to convince the Japanese War Council to accept the Potsdam Conferenceâs demand for unconditional surrender.