Ramsay MacDonald became the first Labour Prime Minister of the United Kingdom.
Hasbro was founded as Hassenfeld Brothers in Providence, Rhode Island.
American Garret Morgan was awarded the patent for an automated traffic signal.
Beer Hall Putsch begins.
Turkey became a republic following the dissolution of the Ottoman Empire.
Walt and Roy O. Disney founded the Walt Disney Company.
The Great Kantō earthquake struck Japan.
The Treaty of Lausanne is signed between Turkey and the countries that formed the Allied Powers in the First World War.
The famous iconic Hollywood sign was placed in Hollywood Hills, Los Angeles, California, US.
Harry Houdini broke free from a straitjacket while hanging upside down 40 feet in New York City, US.
The first-ever Le Mans endurance race began.
The Firestone Tire and Rubber Company started selling inflatable tires from Akron, Ohio.
The first dance marathon took place in New York City, US.
President Warren G. Harding became the first president to pay taxes in the US.
Egyptian King Tutankhamun's coffin was discovered.
Robert L. Douglas, the Father of Black Professional Basketball, set up the first pro-black basketball team called Renaissance.
The founding of the Soviet Union was announced.
The Irish Free State constitution becomes law.
British archaeologists entered the tomb of King Tutankhamun.
The Ottoman Empire ended when the last Sultan Mehmed VI was exiled to Malta on a British warship.
The British Broadcasting Company (BBC) began its radio service in the United Kingdom.
A British-led team of archaeologists located the entrance to Tutankhamun's tomb.
The British Broadcasting Company Ltd (BBC) was founded.
Constantine I of Greece abdicates.
Irish Politician Michael Collins is Assassinated.
Walt Disney incorporated his first film company called Laugh-O-Gram Studio.
The Hinterkaifeck Murders occurred, where six people were brutally killed on a remote farmstead in Germany, and the killer was never identified.
The first public Bat Mitzvah was held in New York City. It was for a girl named Judith Kaplan.
Fuad I became King of Egypt.
Mahatma Gandhi was sentenced to six years in prison for his civil disobedience during a protest.
The silent horror movie "Nosferatu" was released in Berlin, making it the first-ever vampire movie.
The general interest family magazine Reader's Digest was first published.
'Ulysses' by James Joyce is published.
The first successful administration of insulin to treat diabetes was given to 14-year-old Leonard Thompson.
The Anglo-Irish Treaty, agreed to by the British Parliament and Sinn Féin, was ratified.
Eamon de Valera publicly repudiated the Anglo-Irish Treaty.
The Anglo-Irish Treaty was signed.
US President Warren G. Harding signed the Willis-Campbell Act, which took effect from this day.
The Japanese Prime Minister, Hara Takashi, was assassinated in Tokyo.
Nahalal, the first moshav in modern-day Israel, was settled.
Margaret Gorman from Washington, D.C., became the very first Miss America.
The Chinese Communist Party was founded in Shanghai.
Alice Mary Robertson became the first woman to govern the US House of representatives.
The Communist Party of China was founded with Chen Duxiu as the leader.
The British Legion was formed to take care of veterans by giving financial, social, and emotional support to members and veterans of the British Armed Forces.
National Hospital Day was first observed.
The Communist Party of Romania was founded.
Perfume Chanel No.5 was released.
West Virginia became the first state to impose a sales tax.
Albert Einstein visited New York City and lectured on his Theory of Relativity for the first time.
