July 17th, 1421

Born on July 17th, 1421

Age in days, weeks and months
Wow, over 220,000 days old!

Why not celebrate an alternative birthday? In 52 days, exactly on August 14th, 2026, people who were born on July 17th, 1421 will be 221,000 days old!

... in seconds, minutes and hours

What happened on July 17th?

July 17th, 1948

In Olympia, Greece, the Summer Olympics torch relay, nicknamed the "relay of peace", began.

July 17th, 2014

Malaysia Airlines Flight 17 was shot down over eastern Ukraine, killing all 298 people on board.

July 17th, 2007

TAM Airlines Flight 3054 overran the runway at Congonhas Airport in São Paulo, Brazil, killing 199 people.

July 17th, 1996

TWA Flight 800 exploded in mid-air and crashed into the Atlantic Ocean near East Moriches, New York.

July 17th, 1992

The Manchester Metrolink, the first modern street-running light-rail system in the United Kingdom, was officially opened.

July 17th, 1981

A structural failure caused a walkway at the Hyatt Regency hotel in Kansas City, Missouri, U.S., to collapse (damage pictured), killing 114 people and injuring 216 others.

July 17th, 1968

Led by Ahmed Hassan al-Bakr (pictured), the Arab Socialist Ba'ath Party overthrew Iraqi president Abdul Rahman Arif in a bloodless coup.

July 17th, 1944

Laden with munitions for World War II, two ships exploded at the Port Chicago Naval Magazine in California, killing 320 people and injuring more than 400 others.

July 17th, 1918

Russian Revolution: Tsar Nicholas II and his family (pictured) were murdered by Bolsheviks at Yekaterinburg.

July 17th, 1863

The New Zealand Wars resumed as British forces led by General Duncan Cameron began the invasion of the Waikato.

July 17th, 1862

The garrotting and robbery of James Pilkington, a British member of Parliament, led to a moral panic in London.

July 17th, 1850

William Cranch Bond and John Adams Whipple took a daguerreotype of Vega, the first astrophotograph of a star other than the Sun.

July 17th, 1771

Dene men, acting as guides to Samuel Hearne on his exploration of the Coppermine River in present-day Nunavut, Canada, massacred a group of about twenty Copper Inuit.

July 17th, 1453

The Battle of Castillon, the last engagement of the Hundred Years' War, ended with the English losing all holdings in France except the Pale of Calais.

July 17th, 1994

Brazil won the FIFA World Cup final against Italy 3–2 on penalties following a 0–0 draw after extra time.

Public holidays on July 17th

Fixed holidays (Christian feast day) which are celebrated on July 17th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1421 is a normal year and no leap year.

Calendar
July 1421