April 21st, 1237

Born on April 21st, 1237

Age in days, weeks and months
Wow, over 288,000 days old!

Why not celebrate an alternative birthday? In 780 days, exactly on July 23rd, 2028, people who were born on April 21st, 1237 will be 289,000 days old!

... in seconds, minutes and hours

What happened on April 21st?

April 21st, 1967

A violent tornado strikes multiple schools and destroys houses in Belvidere, Illinois, United States, causing over 450 casualties.

April 21st, 1960

Brasília, a planned city primarily designed by architect and urban planner Lúcio Costa, was officially inaugurated, replacing Rio de Janeiro as the capital of Brazil.

April 21st, 1526

Ibrahim Khan Lodi, the last ruler of the Lodi dynasty, was defeated and killed by Babur at the First Battle of Panipat, marking the beginning of Mughal rule in India.

April 21st, 2021

The Indonesian Navy submarine Nanggala imploded and sank in the Bali Sea, resulting in the deaths of all 53 people on board.

April 21st, 2014

The city of Flint, Michigan, U.S., changed its water source to the Flint River, which exposed residents to lead poisoning.a

April 21st, 2010

Ukraine and Russia signed the Kharkiv Pact, extending the Russian lease on naval facilities in Crimea.

April 21st, 1975

South Vietnamese president Nguyễn Văn Thiệu resigned on hearing of the fall of Xuân Lộc, the last battle of the Vietnam War.

April 21st, 1970

In response to a dispute over wheat production quotas, Leonard Casley declared his 75 km2 (29 sq mi) farm in Western Australia to be an independent country as the Hutt River Province.

April 21st, 1962

The Century 21 Exposition, the first world's fair in the United States since World War II, opened in Seattle.

April 21st, 1958

United Airlines Flight 736 collided with a U.S. Air Force fighter jet over southern Nevada, resulting in the deaths of all 49 people on board both aircraft.

April 21st, 1934

The "Surgeon's Photograph", purportedly showing the Loch Ness Monster (later revealed to be a hoax), was published in the Daily Mail.

April 21st, 1836

Forces of the Republic of Texas led by Sam Houston defeated the Mexican troops of Antonio López de Santa Anna in the Battle of San Jacinto, the decisive and final battle of the Texas Revolution.

April 21st, 1725

J. S. Bach's cantata Bleib bei uns, denn es will Abend werden, was first performed on Easter Monday.

April 21st, 1789

The Ladies of Trenton social club hosted a reception for President-elect George Washington as he journeyed to New York City for his first inauguration.

April 21st, 1615

The Wignacourt Aqueduct (pictured) in Malta was inaugurated, and was used to carry water to Valletta for about 300 years.

Public holidays on April 21st

Fixed holidays (Christian feast day) which are celebrated on April 21st.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1237 is a normal year and no leap year.

Calendar
April 1237