California's first freeway, Arroyo Seco Parkway, officially opened to traffic.
The worst German air raid of the Blitz occurred.
Disney's animated feature 'Fantasia' was released to movie theaters in the US.
Benjamin O. Davis Sr. became the first African American US Army brigadier general.
Charlie Chaplin's satirical movie 'The Great Dictator' was released in the US.
The Blitz bombing of London's Balham Tube Station was bombed, killing over 60 people.
17,000-year-old cave art was discovered in France.
Buckingham Palace, London, was blasted during The Blitz mass air bombings by Germany.
The Blitz began.
Adolf Hitler made plans to invade Britain starting on September 21, 1940.
Exiled Soviet leader Leon Trotsky was assassinated with an ice axe in Mexico City.
Billboard magazine started ranking sales of recorded songs.
Adolf Hitler offered peace to Great Britain if they would surrender and allow Germany to dominate the country.
Adolf Hitler planned to invade Britain under the guise name 'Operation Sealion.'
Nazi forces moved on Britain for the first time after attacking shipping containers in the English Channel.
Hitler had his first and only tour of Paris, ticking Eiffel Tower and Napoleon's grave off his bucket list.
The first Dairy Queen restaurant opened in Joliet, Illinois, US.
Sir Winston Churchill gave his famous 'Finest Hour' speech in the House of Commons.
Auschwitz concentration camp started operation after 728 Polish prisoners became the first to arrive.
Italy declared war on France and Britain.
The discovery of the chemical element Neptunium was announced.
Germany invaded France during WWII.
Winston Churchill presented his famous speech 'We Shall Fight on the Beaches.'
The world's first Mcdonald's opened in San Bernardino, California.
Winston Churchill made his famous speech to the House of Commons.
Heinrich Himmler ordered the construction of the Auschwitz Concentration Camp.
Nazi Germany invaded and attacked Denmark.
Booker T. Washington became the first Black person pictured on a US postage stamp.
The first US telecast was made from an airplane flying over New York City.
Hattie McDaniel won Best Supporting Actress for her role in 'Gone With the Wind,' making her the first African American woman to win an Oscar.
Two scientists from the University of California Radiation Laboratory discovered carbon-14, a new isotope of carbon.
Tom and Jerry made their debut appearance.
Glenn Miller's 'In the Mood' hit number one on this day and stayed there for 12 weeks.
Walt Disney released their second feature-length movie, 'Pinocchio,' in New York City.
