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April
21

April 21, the legendary founding date of Rome, has seen the birth of empires and cultural icons across millennia.

On This Day in History

753 BC
Ancient

Legendary Founding of Rome

According to tradition, Romulus founded the city of Rome on the Palatine Hill. The legendary founding date became one of the most important dates in ancient Roman culture.

1509
Politics

Henry VIII Becomes King of England

Henry VIII ascended to the English throne at age 17 upon the death of his father, Henry VII. His reign would transform England through the break with Rome and the English Reformation.

Historical image during Battle of San Jacinto in 1836
Battle of San Jacinto, 1836. Photo: Wikimedia Commons / Public Domain
1836
War & Conflict

Battle of San Jacinto

Texan forces under Sam Houston defeated the Mexican army at the Battle of San Jacinto in just 18 minutes. The victory secured Texas independence from Mexico.

1898
War & Conflict

Spanish-American War Begins

The United States declared war on Spain following the sinking of the USS Maine and growing outrage over Spanish treatment of Cubans. The brief war established America as an imperial power.

1910
Culture

Mark Twain Dies

Samuel Clemens, known as Mark Twain, died at age 74 in Redding, Connecticut. He had predicted he would die when Halley's Comet returned, and the comet appeared the day before his death.

Historical image at Queen Elizabeth II Is Born in 1926
Queen Elizabeth II Is Born, 1926. Illustration: AI-generated
1926
Politics

Queen Elizabeth II Is Born

Princess Elizabeth Alexandra Mary was born in London. She would become Queen Elizabeth II in 1952 and reign for over 70 years, the longest in British history.

1989
Civil Rights

Tiananmen Square Protests Begin

Pro-democracy protests began in Beijing's Tiananmen Square following the death of reformist leader Hu Yaobang. The protests would culminate in the tragic military crackdown on June 4.

All Days in April

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