The fast-food chain, Jack in the Box, was founded in San Diego, California.
The first of 126 nuclear tests started at the Nevada Test Site.
"Storm of the century" hits eastern U.S.
Researchers at the Lawrence Berkeley National Laboratory discover Californium, a new radioactive element.
The US celebrated its very first National Book Awards.
U.S. Senator Joseph McCarthy launches his anti-communist campaign.
Berlin airlift ends.
The iconic Hollywoodland sign was changed to just Hollywood as we know it today.
The US launched the first monkey into space aboard a V2 sounding rocket.
Mildred Gillard became the first woman in US history to be convicted of treason.
Automatic street lights first appeared in New Milford, Connecticut, US.
The first-ever Emmy Awards were presented at the Hollywood Athletic Club in Los Angeles.
Los Angeles was covered in snow for the first time in recorded history.
The first-ever photograph of genes was taken.
In-N-Out Burger opened its first restaurant in Baldwin Park, Los Angeles, US.
Supreme Court ruled bans on interracial marriage unconstitutional.
Harry S. Truman signs the Marshall Plan.
US Air Force Captain Chuck Yeager became the first-ever person to break the speed of sound, flying the Bell X-1 at 662 miles per hour.
Harry Truman delivers first‑ever presidential speech on TV.
President Harry Truman signed the National Security Act.
A flying saucer crash at Roswell, New Mexico, was broadcasted to the public.
Rosewell UFO sighting.
President Harry Truman opened the two-lane White House bowling alley.
The Texas City industrial incident occurred, killing 536 people.
The first Tony Awards were handed out at the Waldorf-Astoria Hotel in New York City.
The Truman doctrine is proclaimed.
US General Eisenhower bid to raise $170 million in aid to help European Jews.
Edwin Land presented his Polaroid photo product, the world's first instant photos, in New York City.
US President Harry Truman officially proclaimed the end of World War II.
World's first theme park opens its doors in in Santa Claus, Indiana, USA.
The United States Supreme Court declared that it was unlawful to discriminate in interstate travel.
America built the first rocket to reach an altitude of 50 miles (80 km).
Citizens of Bikini Island evacuated for nuclear testing.
The first commercial helicopter, Sikorsky S51, had its first test flight.
Segregation led many students to walk out of Froebel High School, Gary, Indiana.
American forces made a second attack on Japan during World War II and dropped an atomic bomb on Nagasaki.
The United States of America dropped its first-ever atomic bomb on the city of Hiroshima, Japan.
The USS Indianapolis vessel was torpedoed and sunk.
US bomber plane crashed into the Empire State Building in New York City, and Lou Oliver survived a 75-story drop in an elevator.
The Potsdam Conference began between the Soviet Union, UK & US.
The world's first atomic bomb was detonated.
Okinawa falls to U.S. troops.
The US Army freed 32,000 concentration camp prisoners in Dachau, Germany.
The battle of Iwo Jima was won by the US after a month and a week of fighting.
Anti-Discrimination Bill was signed in New York, US.
The most destructive bombing raid in history hits Tokyo.
The United States Air Force firebombed Tokyo, Japan, killing over 100,000 civilians.
U.S. troops capture the Ludendorff Bridge and cross the Rhine at Remagen.
U.S. troops land on the Japanese island of Iwo Jima.
Walt Disney released '3 Caballeros' in the United States.
