May 4th, 1255

Born on May 4th, 1255

Age in days, weeks and months
Wow, over 281,000 days old!

Why not celebrate an alternative birthday? In 315 days, exactly on June 6th, 2027, people who were born on May 4th, 1255 will be 282,000 days old!

... in seconds, minutes and hours

What happened on May 4th?

May 4th, 2015

The Parliament of Malta moved from the Grandmaster's Palace to the purpose-built Parliament House (pictured).

May 4th, 2000

Ken Livingstone took office as the first mayor of London.

May 4th, 1982

Falklands War: HMS Sheffield was struck by an Exocet missile, killing 20 sailors and leading to its sinking six days later—the first Royal Navy ship sunk in action since World War II.

May 4th, 1979

Margaret Thatcher became the first female prime minister of the United Kingdom.

May 4th, 1974

An all-female Japanese team reached the summit of Manaslu in the Himalayas, becoming the first women to climb a peak higher than 8,000 metres (26,247 ft) above sea level.

May 4th, 1942

World War II: Aircraft from Imperial Japanese Navy vessels attacked Allied naval forces, beginning the Battle of the Coral Sea, the first naval action in which the participating ships never sighted or fired directly at each other.

May 4th, 1776

American Revolution: The Colony of Rhode Island and Providence Plantations became the first of the Thirteen Colonies to renounce its allegiance to the British Crown.

May 4th, 1677

Trunajaya rebellion: Dutch East India Company forces under Cornelis Speelman began an attack on Surabaya, on the island of Java.

May 4th, 1493

Pope Alexander VI (pictured) issued the papal bull Inter caetera, establishing a line of demarcation dividing the New World between Spain and Portugal.

May 4th, 1919

The May Fourth Movement began in China with large-scale student demonstrations in Tiananmen Square, Beijing.

May 4th, 1789

The Boydell Shakespeare Gallery, part of a cultural project initiated by engraver John Boydell, opened in London.

May 4th, 1823

Brazilian War of Independence: A Brazilian squadron led by Lord Cochrane engages a Portuguese squadron under João de Campos off Salvador, Bahia.

May 4th, 1738

The Imperial Theatrical School, the first ballet school in Russia, is founded.

May 4th, 2019

The inaugural all-female motorsport series, W Series, takes place at Hockenheimring. The race was won by Jamie Chadwick, who would go on to become the inaugural series champion.

May 4th, 2007

Greensburg, Kansas is almost completely destroyed by the 2007 Greensburg tornado, a 1.7-mile wide EF5 tornado. It was the first-ever tornado to be rated with the new Enhanced Fujita scale.

Public holidays on May 4th

Fixed holidays (Christian feast day, May Fourth Movement commemorations) which are celebrated on May 4th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1255 is a normal year and no leap year.

Calendar
May 1255