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Preservation of Niagra Falls
The US & Canada agree to preserve Niagara Falls -
Great Depression begins
On September 4th the stock prices began to fall -
Pluto was discovered
Percival Lowell noticed that the gravitational pull of something large was affecting the orbits of Neptune and Uranaus -
Al Capone was imprisoned
Capone was convicted on tax evasion in 1931 and sentenced to federal prison -
U.S Gets National Anthem
On March 3, 1931, U.S. President Herbert Hoover signed an act that officially made "The Star Spangled Banner" the national anthem for the United States. -
Empire State Build Completed
The Empire State Building was the tallest building in the world - standing at 1,250 feet tall when it opened on May 1, 1931 -
Air conditioning invented
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Zippo Lighter Introduced
George G. Blaisdell founded Zippo Manufacturing Company in 1932 -
New Deal is launched
Franklin D. Roosevelt lauched the new deal in 1933 -
Loch Ness Monster First Spotted
Popular interest and belief in the animal's existence has varied since it was first brought to the world's attention in 1933. -
Cheeseburger Created
Lionel Sternberger is reputed to have invented the cheeseburger in 1934 at the age of 16 -
The Dust Bowl
The Dust Bowl was a period of severe dust storms causing major ecological and agricultural damage -
Alcoholics Anonymous Founded
AA is founded by Bill Wilson and Dr. Bob Smith in Akron, Ohio. -
Social Security Enacted
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Hoover Dam Completed
The Hoover Dam is finished between the states of Arizona and Nevada. -
Golden Gate Bridge Opened
Construction began January 5, 1933 on was finished 4 years later on May 27th -
Amelia Earhart Vanishes
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Volkswagen Beetle First Produced
In 1938 dolf Hitler conceived the Beetle when he was leader of Nazi Germany and wanted a cheap, simple car. -
March of Dimes Founded
The March of Dimes was founded by then-President Franklin D. Roosevelt in 1938 to combat polio. -
Einstein writes a letter
Einstein Writes a Letter to FDR About Building an Atomic Bomb -
World War 2 Began
World War 2 began September 1, 1939, beginning with the German invasion of Poland; Britain and France declared war on Germany two days later. -
Paintings found
Stone Age Cave Paintings Found in France -
Leon Trotsky Assassinated
Trotsky was sitting at a desk helping Ramon Mercader edit an article. Mercader waited until Trotsky started to read the article, then snuck up behind Trotsky and slammed a mountaineering ice pick into Trotsky's skull -
Jeep Invented
The first Jeeps were produced in 1941 making it the oldest off-road vehicle and SUV. -
Mount Rushmore Completed