April 10th, 1421

Born on April 10th, 1421

Age in days, weeks and months
Wow, over 221,000 days old!

Why not celebrate an alternative birthday? In 954 days, exactly on February 1st, 2029, people who were born on April 10th, 1421 will be 222,000 days old!

... in seconds, minutes and hours

What happened on April 10th?

April 10th, 1992

First Nagorno-Karabakh War: Dozens of Armenian civilians were massacred in the village of Maraga by Azerbaijani forces.

April 10th, 1973

In the deadliest aviation accident in Swiss history, Invicta International Airlines Flight 435 crashed into a hillside near Hochwald, killing 108 people of 145 on board.

April 10th, 1970

In the midst of business disagreements with his bandmates, Paul McCartney announced his departure from the Beatles.

April 10th, 1963

The U.S. Navy nuclear submarine USS Thresher (SSN-593) sank with all hands lost during deep-diving tests in the North Atlantic Ocean.

April 10th, 1944

The Holocaust: Slovak Jewish prisoners Rudolf Vrba and Alfréd Wetzler escaped from Auschwitz, later publishing a report that became one of the earliest and most detailed descriptions of the camp's mass killings.

April 10th, 1925

The Great Gatsby (cover pictured), a novel by American author F. Scott Fitzgerald, was first published by Scribner's.

April 10th, 1919

Mexican Revolution leader Emiliano Zapata was shot to death near Ciudad Ayala, Morelos.

April 10th, 1858

Big Ben, the bell in the Palace of Westminster's clock tower in London, was cast after the original bell cracked during testing.

April 10th, 1815

Mount Tambora (pictured) in Indonesia began the most powerful volcanic eruption in recorded history, killing at least 71,000 people and affecting temperatures worldwide.

April 10th, 1809

Napoleonic Wars: The War of the Fifth Coalition began with the Austrian invasion of Bavaria, then a client state of France.

April 10th, 1741

War of the Austrian Succession: Prussian forces defeated Austrian troops at the Battle of Mollwitz in present-day Małujowice, Poland, cementing Frederick II's authority over the newly conquered territory of Silesia.

April 10th, 1221

A Mongol army commanded by Tolui captured the city of Merv in present-day Turkmenistan, allegedly killing more than 1.7 million people.

April 10th, 2009

Fijian President Ratu Josefa Iloilo announced that he had suspended the constitution and assumed all governance in the country after it was ruled that the government of Prime Minister Frank Bainimarama was illegal.

April 10th, 1724

Bach led the first performance of his cantata Erfreut euch, ihr Herzen, his first cantata composed for Easter in Leipzig.

April 10th, 0847

Pope Leo IV was consecrated without imperial consent following the Saracen sack of Rome.

Public holidays on April 10th

Fixed holidays (Christian feast day) which are celebrated on April 10th.

Date as a Roman numeral / digit

Leap year

No: With 365 days 1421 is a normal year and no leap year.

Calendar
April 1421