January 31st, 1171

Born on January 31st, 1171

Age in days, weeks and months
Wow, over 312,000 days old!

Why not celebrate an alternative birthday? In 541 days, exactly on January 18th, 2028, people who were born on January 31st, 1171 will be 313,000 days old!

... in seconds, minutes and hours

What happened on January 31st?

January 31st, 1850

Ute Wars: On behalf of Utah territorial governor Brigham Young, militia leader Daniel H. Wells drafted an order for the Utah Territorial Militia to exterminate Timpanogos men deemed hostile, leading to the Provo River Massacre.

January 31st, 1827

Mexican soldiers and Texan militiamen marched into Nacogdoches, Texas, to end the Fredonian Rebellion.

January 31st, 1703

Forty-seven rōnin (depicted) attacked the home of Kira Yoshinaka and killed him in an act of revenge for Asano Naganori, their dead feudal lord.

January 31st, 2013

A gas leak underneath the Pemex Executive Tower in Mexico City caused an explosion (aftermath pictured) that killed at least 37 people and injured another 121.

January 31st, 2010

James Cameron's Avatar became the first film to earn over US$2 billion worldwide.

January 31st, 2000

Alaska Airlines Flight 261, experiencing problems with its horizontal stabilizer system, crashed in the Pacific Ocean off Anacapa Island, California, killing all 88 people on board.

January 31st, 1988

Doug Williams became the first African-American quarterback to play in the Super Bowl, leading the Washington Redskins to victory in Super Bowl XXII.

January 31st, 1961

Aboard NASA's Mercury-Redstone 2, the chimpanzee Ham became the first hominid to be launched into outer space.

January 31st, 1957

A DC-7B operated by Douglas Aircraft collided in mid-air with a U.S. Air Force F-89 and crashed into a schoolyard in Pacoima, California.

January 31st, 1900

Datu Muhammad Salleh, leader of a series of major disturbances in North Borneo, was shot dead in Tambunan, but his followers did not give up for five more years.

January 31st, 1862

American astronomer Alvan Graham Clark first observed the faint white dwarf companion of Sirius, the brightest star in the night sky.

January 31st, 1747

The London Lock Hospital, the first voluntary hospital specialising in the treatment of venereal diseases, opened.

January 31st, 1578

Eighty Years' War: Spanish forces won a crushing victory at the Battle of Gembloux, threatening the States General of the Netherlands and contributing to its move from Brussels to Antwerp.

January 31st, 1208

Sverker II was defeated at the Battle of Lena by Erik Knutsson, who succeeded him as King of Sweden.

January 31st, 0314

Sylvester I (bust depicted), during whose pontificate many churches in Rome were constructed by Constantine the Great, began his reign as pope.

Public holidays on January 31st

Fixed holidays (Christian feast day) which are celebrated on January 31st.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1171 is a normal year and no leap year.

Calendar
January 1171