August 20th, 1255

Born on August 20th, 1255

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

Why not celebrate an alternative birthday? In 450 days, exactly on September 22nd, 2027, people who were born on August 20th, 1255 will be 282,000 days old!

... in seconds, minutes and hours

What happened on August 20th?

August 20th, 1892

Celtic Park, the largest football stadium in Scotland and home of Celtic F.C., opened.

August 20th, 2008

Spanair Flight 5022 crashed just after take-off from Madrid's Barajas Airport, killing 154 people.

August 20th, 1998

The Al-Shifa pharmaceutical factory (pictured) in Sudan was destroyed by a missile attack launched by the United States in retaliation for the August 7 U.S. embassy bombings.

August 20th, 1989

The final stage of the O-Bahn Busway in Adelaide, South Australia, was finished, completing at the time the world's longest and fastest guided busway, with buses (example pictured) travelling 12 km (7.5 mi) at speeds of up to 100 km/h (62 mph).

August 20th, 1988

Fires in the United States' Yellowstone National Park ravaged more than 150,000 acres (610 km2) on the single worst day of the conflagration.

August 20th, 1950

Korean War: United Nations forces repelled an attempt by North Korea to capture the city of Taegu.

August 20th, 1920

The American Professional Football Association, a predecessor of the National Football League, was founded.

August 20th, 1910

Hurricane-force winds combined hundreds of small fires in the U.S. states of Washington and Idaho into the Devil's Broom fire, which burned about 4,700 square miles (12,100 km²), the largest fire in recorded U.S. history.

August 20th, 1909

Pluto (pictured) was photographed for the first time at the Yerkes Observatory in Williams Bay, Wisconsin, U.S., 21 years before it was officially discovered by Clyde Tombaugh.

August 20th, 1794

American troops defeated the Northwestern Confederacy, a Native American alliance, at the Battle of Fallen Timbers, the decisive battle of the Northwest Indian War.

August 20th, 1710

War of the Spanish Succession: A Spanish Bourbon army commanded by the Marquis de Bay was soundly defeated by a multinational army led by the Austrian commander Guido Starhemberg.

August 20th, 1707

The first Siege of Pensacola came to an end with the British and Creek abandoning their attempt to capture Pensacola in Spanish Florida.

August 20th, 0917

Byzantine–Bulgarian wars: Bulgarian forces led by Tsar Simeon I drove the Byzantines out of Thrace with a decisive victory at the Battle of Achelous.

August 20th, 0636

Rashidun forces led by Khalid ibn al-Walid took control of Syria and Palestine in the Battle of the Yarmuk, marking the first great wave of Muslim conquests.

August 20th, 2018

Silent Sam, a Confederate monument on the campus of the University of North Carolina at Chapel Hill, was toppled by protestors.

Public holidays on August 20th

Fixed holidays (Christian feast day) which are celebrated on August 20th.

Date as a Roman numeral / digit

Leap year

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

Calendar
August 1255