August 7th, 1399

Born on August 7th, 1399

Age in days, weeks and months
Wow, over 228,000 days old!

Why not celebrate an alternative birthday? In 56 days, exactly on July 31st, 2026, people who were born on August 7th, 1399 will be 229,000 days old!

... in seconds, minutes and hours

What happened on August 7th?

August 7th, 1850

The first section of the Great Northern Railway, now the southern section of the East Coast Main Line, opened between London and Peterborough.

August 7th, 1744

Prussia declared its intervention in the War of the Austrian Succession on behalf of Charles VII, beginning the Second Silesian War.

August 7th, 1998

Car bombs exploded simultaneously at the American embassies in the East African capital cities of Dar es Salaam, Tanzania, and Nairobi, Kenya, killing more than 200 people and injuring more than 4,000 others.

August 7th, 1987

Lynne Cox became the first person to swim between the U.S. and the Soviet Union, crossing from Little Diomede to Big Diomede in the Bering Strait in 2 hours and 5 minutes.

August 7th, 1985

Five members of the Bamber family were found murdered at a farmhouse in Tolleshunt D'Arcy, England.

August 7th, 1970

Jonathan Jackson took hostages in a courthouse in Marin County, California, to coerce the release of the Soledad Brothers, resulting in the deaths of judge Harold Haley and three others.

August 7th, 1955

Hurricane Diane, the first Atlantic hurricane to cause more than $1 billion in damages, formed between the Lesser Antilles and Cape Verde.

August 7th, 1946

The Soviet Union informed Turkey that the way in which the latter was handling the Turkish Straits no longer represented the security interests of its fellow Black Sea nations, escalating the Turkish Straits crisis.

August 7th, 1944

IBM presented the first program-controlled calculator to Harvard University, after which it became known as the Mark I (pictured).

August 7th, 1942

World War II: U.S. Marines initiated the first American offensive of the Guadalcanal campaign, with landings on Tulagi (pictured), Gavutu–Tanambogo and Guadalcanal in the Solomon Islands.

August 7th, 1914

The Battle of Mulhouse began with France's first attack of World War I in an ultimately unsuccessful attempt to recover the region of Alsace from Germany.

August 7th, 1909

Fifty-nine days after leaving New York City with three passengers, Alice Huyler Ramsey arrived in San Francisco to become the first woman to drive an automobile across the contiguous United States.

August 7th, 1897

Mahdist War: Anglo-Egyptian soldiers clashed with Mahdist Sudanese rebels in the Battle of Abu Hamed.

August 7th, 1794

U.S. president George Washington invoked the Militia Acts of 1792 to suppress the Whiskey Rebellion in western Pennsylvania.

August 7th, 1782

The Badge of Military Merit (pictured), the precursor to the U.S. Purple Heart, was established as a military decoration of the Continental Army.

Public holidays on August 7th

Fixed holidays (Christian feast day) which are celebrated on August 7th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1399 is a normal year and no leap year.

Calendar
August 1399