August 25th, 1440

Born on August 25th, 1440

Age in days, weeks and months
Wow, over 214,000 days old!

Why not celebrate an alternative birthday? In 999 days, exactly on April 19th, 2029, people who were born on August 25th, 1440 will be 215,000 days old!

... in seconds, minutes and hours

What happened on August 25th?

August 25th, 1227

Genghis Khan, founder of the Mongol Empire, died after a lengthy illness during the Mongol conquest of Western Xia.

August 25th, 1609

Italian astronomer Galileo Galilei (pictured) demonstrated his first telescope to Venetian lawmakers.

August 25th, 1543

António Mota and a few companions become the first Europeans to visit Japan.

August 25th, 2012

The skeleton of King Richard III of England was discovered under a car park in Leicester.

August 25th, 2011

Mexican drug war: Fifty-two people were killed in an arson attack at a casino in Monterrey, Mexico.

August 25th, 2001

American singer Aaliyah (pictured) and several members of her record company were killed when their overloaded aircraft crashed shortly after takeoff from Marsh Harbour Airport in The Bahamas.

August 25th, 1989

The NASA spacecraft Voyager 2 made its closest approach to Neptune and provided definitive proof of the existence of the planet's rings (pictured).

August 25th, 1975

Bruce Springsteen released his commercial breakthrough album, Born to Run.

August 25th, 1942

World War II: Japanese forces attacked the Australian base at Milne Bay on the eastern tip of New Guinea.

August 25th, 1875

Matthew Webb became the first person to swim across the English Channel, doing so in approximately 21 hours 40 minutes.

August 25th, 1758

Seven Years' War: Prussian forces engaged the Russians at the Battle of Zorndorf in present-day Sarbinowo, Poland.

August 25th, 1537

The Honourable Artillery Company, now the oldest surviving regiment in the British Army, was granted a royal charter by Henry VIII.

August 25th, 1270

Philip III became King of France following the death of his father Louis IX during the Eighth Crusade.

August 25th, 1914

World War I: During the sack of Louvain in Belgium, German troops burned the town's Catholic university, destroying several medieval manuscripts.

August 25th, 2017

Conflict in Rakhine State (2016–present): One hundred seventy people are killed in at least 26 separate attacks carried out by the Arakan Rohingya Salvation Army, leading to the governments of Myanmar and Malaysia designating the group as a terrorist organisation.

Public holidays on August 25th

Fixed holidays (Christian feast day) which are celebrated on August 25th.

Date as a Roman numeral / digit

Leap year

Yes: 1440 is a leap year, therefore has a 29th of February with an additional leap day and a total of 366 days (instead of the usual 365 days in a normal year).

Calendar
August 1440