Harry Truman authorized Atomic Bombs to be dropped on Hiroshima and Nagasaki (August 6 and 9, 1945) and WW2 ended September 2, 1945 but the Cold War began and the Iron Curtain fell. The other main events that occurred during the time that Harry Truman was president included the creation of the United Nations in 1945, the Nuremburg Trials, the Truman Doctrine (1947), the Taft-Hartley Act, the NATO Treaty (1949), McCarthyism and the outbreak of the Korean War (1950-1953). Harry Truman died of cardiovascular collapse on December 26, 1972, aged 88. The next president was Dwight Eisenhower.

Birthday: May 8, 1884

Place of Birth: Missouri

Political Party: Democratic 

Nickname: Give 'em Hell, Harry

Number: 33rd President

Vice President: Alben W. Barkley

Age at Inauguration: 60

Height: 5 feet 9 inches

Weight: 167 pounds

First Lady: Bess Truman

Religion: Baptist

Date of Death: December 26, 1972

Date of Harry Truman Presidency: April 12, 1945 to January 20, 1953

The Nickname of Harry Truman: "Give 'em Hell, Harry"
The nickname of President Harry Truman provides an insight into how the man was viewed by the American public during his presidency. The meaning of the nickname "Give 'em Hell, Harry" refers to his famous quote in which he said after his statement "I never gave anybody hell...I just told the truth, and they thought it was hell."

Character and Personality Type of Harry Truman
The character traits of President Harry Truman can be described as open, frank, honest, independent, forceful, modest, confident and decisive. It has been speculated that the Myers-Briggs personality type for Harry Truman is an ISTJ (Introversion, Sensing, Thinking, Judgment). A reserved, well-regulated and serious character and a strong traditionalist. Harry Truman Personality type: logical, organized, sensible, thorough and dependable.

Accomplishments of Harry Truman and the Famous Events during his Presidency
The accomplishments of Harry Truman and the most famous events during his presidency are provided in an interesting, short summary format detailed below. President Franklin Roosevelt died suddenly on April 12, 1945 and it was President Truman who witnessed the events that led to the end of World War 2.

The Atomic Bomb
Summary of the Atomic Bomb: The Atomic Bomb was developed during World War 2 by the scientists working in the Manhattan Project led by Robert Oppenheimer. The authorization for the atomic bomb to be dropped on Japan was given by President Harry Truman.

Hiroshima and Nagasaki
Summary of Hiroshima:  The United States,  with the authorization of President Harry Truman, dropped an atomic bomb on the people of Hiroshima, Japan on August 6, 1945 and one on Nagasaki, Japan on August 9, 1945. The nuclear bombing of Hiroshima and Nagasaki brought World War 2 to an end. 

The Enola Gay
Summary of the Enola Gay: The Enola Gay was the name given by the pilot of the Boeing B-29 bomber that dropped the atomic bomb "Little Boy" on Hiroshima   

VJ Day (Victory over Japan Day)
Summary of VJ Day: VJ Day (August 14, 1945) was the day on which Japan surrendered, effectively ending WW2. World War 2 officially ended on September 2, 1945 with the unconditional surrender of all the Axis powers.

The Cold War (1945 - 1991)
Summary of the Cold War: No sooner had World War 2 ended, The Cold War began. The Cold War was a 'war of words'  involving the Cold War Space Race and the Cold War Arms Race involving the nuclear build-up between the USA and the West and the Communist countries dominated by the USSR and China in the East. Nine US Presidents were in office during the dangerous period in history known as the Cold War from  1945 - 1991 in which the US adopted the policy of Containment to restrict the spread of communism abroad.

The Potsdam Conference (1945)
Summary of the Potsdam Conference: The Potsdam Conference (17 July 17, 1945 - August 2, 1945) was the last of the WW2 wartime summit meetings, led by Harry Truman, Clement Attlee and Joseph Stalin, to clarify the terms for the for the end of World War 2.

The United Nations (1945)
Summary of the United Nations: The United Nations (UN) was founded on 24 October 1945 to work for world peace and security.

The Iron Curtain (1945)
Summary of the Iron Curtain: The term "Iron Curtain" was used to describe the boundary that separated the free democratic countries of the West with the communist dominated countries of the East from 1945 until the end of the Cold War in 1991.

Atomic Tests at Bikini Atoll (1946)
Summary of Bikini Atoll: Operation Crossroads was the name of a program at Bikini Atoll, in the Marshall Islands of the central Pacific, in which two nuclear weapon tests were conducted by the United States  and the first public demonstration of America's atomic arsenal after the Atomic bombs was dropped on Hiroshima and Nagasaki at the end of World War 2. The "Able" test detonated an atomic bomb on July 1, 1946 and the "Baker" test was detonated on July 25, 1946

The Truman Doctrine (1947)
Summary of the Truman Doctrine: The Truman Doctrine was based on a speech made to Congress on March 27, 1947 by President Harry Truman in which he pledged to support other countries in their struggle against communism.

The Marshall Plan (1947)
Summary of the Marshall Plan: The Marshall Plan proposed by US Secretary of State George C. Marshall in June 1947 and endorsed by Harry Truman. It was a US-financed relief package to European nations following the devastation and economic ruin caused by WW2.

Roswell UFO Incident (1947)
Summary of the Roswell UFO Incident: The Roswell UFO Incident began when a large number of alleged sightings of Unidentified Flying Objects (UFO's) occurred in the area of Roswell, New Mexico between May 17,1947 and July 12, 1947.

The Loyalty Review Program (1947)
Summary of the Loyalty Review Program: The Loyalty Review Program was established by Harry Truman on March 21, 1947, fueled by the second Red Scare that began after World War 2. The Loyalty Review Program screened federal employees for loyalty and root out any possibility of communist infiltration or influence in the U.S. government during the Cold War.

1947 Taft Hartley Act
Summary of the Taft Hartley Act: The Taft Hartley Act was passed by Harry Truman on June 23, 1947 during the wave of anti-communist hysteria to curb the power of the Unions by outlawing the 'closed shop' system and opening up jobs to non-union members. President Harry Truman vetoed the act, but the law was passed over his veto.

HUAC - House of Un-American Activities Committee
Summary of the HUAC: The House of Un-American Activities Committee, known as HUAC, came into prominence in 1947 during the second Red Scare and the "Communist Witch Hunts". One of the most famous cases referred to HUAC was the investigation of Alger Hiss

McCarthyism (1950 - 1956)
Summary of McCarthyism: The term McCarthyism was applied to the notorious Joe McCarthy Communist Witch hunts (1950 - 1956), that took place during the presidency of Harry Truman, instigated investigations and the persecution of alleged communists in America with accusations of treason or subversion being made without proper regard for evidence.

The Berlin Blockade (1948)
Summary of the Berlin Blockade: Joseph Stalin mounted the Soviet Berlin Blockade in East Germany (1 April, 1948 – 12 May, 1949) by closing the entry points to the Western zones of Berlin in an attempt to starve the Western allies out of the capital and abandon the city of Berlin. The United States, led by Harry Truman, and the British responded to the blockade with the Berlin Airlift.

The Berlin Airlift (1948)
Summary of the Berlin airlift: The United States, led by Harry Truman, and the British responded to the Berlin blockade with the Berlin Airlift (1 April 1948 – 12 May 1949), a rescue mission to keep West Berlin alive despite the Soviet blockade of the city.

Mao Zedong (1949)
Summary of Mao Zedong: After World War 2, the Communists led by Mao Zedong mounted the Chinese Revolution ousting Chiang Kai-shek, and taking control of China in 1949.

NATO (1949)
Summary of NATO: NATO, the North Atlantic Treaty Organization, was formed in Washington, D.C. on April 4, 1949 as a mutual Defense pact aimed at containing Soviet expansion.

The Korean War (1950 - 1953)
Summary of the Korean War: The Korean War (June 25, 1950 - July 27, 1953) began when North Korea invaded South Korea. The Korean War was fought between the Soviet-backed communist North Korea and China against the United States and the UN-backed South Korea.

CONELRAD (1951)
Summary of CONELRAD: The Control of Electromagnetic Radiation CONELRAD was an emergency broadcasting system, introduced in 1951 by the US government for use in the event of a Soviet nuclear attack on the United States in addition to the existing siren warning systems.