1930
Pluto was discovered

Once Tombaugh got going toward the end of 1929, the discovery came remarkably rapidly: on February 18, 1930, he found the distant planet on plates taken on the 23rd and 29th of January. The discovery was announced March 13, 1930 — Percival Lowell’s birthday.

1932
March 2nd The 20th Amendment was passed
1933
January 23rd The 20th Amendment was ratified

The Twentieth Amendment was adopted on January 23, 1933. The amendment reduced the presidential transition and the “lame duck” period, by which members of Congress and the president serve the remainder of their terms after an election.

1933
Franklin D Roosevelt becomes 32nd president of usa
1933
December 5th the 21st Amendment was ratified / Prohibition in the United States ends

On December 5, 1933, the 21st Amendment was ratified, as announced in this proclamation from President Franklin D. Roosevelt. The 21st Amendment repealed the 18th Amendment of January 16, 1919, ending the increasingly unpopular nationwide prohibition of alcohol. Read more about Prohibition and the 18th Amendment.

1936
King George V died

King George V died 82 years ago of lung disease. Grandson of Queen Victoria and grandfather to Queen Elizabeth II, his death was expected (he had been a heavy smoker and ill for some time

1936
Edward VIII became king of England

Edward was the most popular Prince of Wales Britain has ever had. Consequently when he renounced the throne to marry Mrs. Wallis Simpson the country found it almost impossible to believe. The people as a whole knew nothing about Mrs. Simpson until early in December 1936. Mrs. Simpson was an American, a divorcee and had two husbands still living. This was unacceptable to the Church, as Edward had stated that he wanted her to be crowned with him at the Coronation which was to take place the following May. Edward abdicated in favour of his brother and took the title, Duke of Windsor. He went to live abroad.

1936
George VI became king of England

George VI became King unexpectedly following the abdication of his brother, King Edward VIII, in December 1936. A conscientious and dedicated man, he worked hard to adapt to the role into which he was suddenly thrown.

George was a shy and nervous man with a very bad stutter, the exact opposite of his brother the Duke of Windsor, but he had inherited the steady virtues of his father George V. He was very popular and well loved by the British people. The prestige of the throne was low when he became king, but his wife Elizabeth and his mother Queen Mary were outstanding in their support of him.
The Second World War started in 1939 and throughout the King and Queen set an example of courage and fortitude. They remained at Buckingham Palace for the duration of the war in spite of the bombing. The Palace was bombed more than once. The two Princesses, Elizabeth and Margaret, spent the war years at Windsor Castle. George was in close touch with the Prime Minister, Winston Churchill throughout the war and both had to be dissuaded from landing with the troops in Normandy on D-Day! The post-war years of his reign were ones of great social change and saw the start of the National Health Service. The whole country flocked to the Festival of Britain held in London in 1951, 100 years after the Great Exhibition during Victoria’s reign.

1936
Tasmanian Wolf / Devil goes extinct
1937
Ireland becomes a country
1937
The Golden Gate Bridge is opens

The Golden Gate Bridge in San Francisco officially opened on May 27, 1937, the longest bridge span in the world at the time.

1939
September 1st World War II Began
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