April 22

April 22 is the 112th day of the year (113th in leap years) in the Gregorian calendar; 253 days remain until the end of the year.

Events

Pre-20th century

• 1500 – Portuguese navigator Pedro Álvares Cabral becomes the first European to arrive in Brazil, claiming the land for the Portuguese Empire.
• 1509 – Henry VIII ascends the throne of England following the death of his father, Henry VII.
• 1832 – Black Hawk War: A militia attacks a band of Sauk Indians, sparking the Battle of Stillman's Run.
• 1864 – The United States Congress passes the Coinage Act of 1864, mandating the inscription "In God We Trust" on all U.S. coins.

20th century

• 1915 – World War I: Germany uses poison gas for the first time on a large scale during the Second Battle of Ypres.
• 1944 – World War II: Allied forces begin Operation Persecution, landing at Aitape and Hollandia in New Guinea.
• 1945 – World War II: Soviet forces enter the suburbs of Berlin, initiating the Battle of Berlin.
• 1970 – The first Earth Day is celebrated across the United States, marking the birth of the modern environmental movement.
• 1993 – Mosaic version 1.0, the first popular graphical web browser, is released, significantly contributing to the rapid growth of the World Wide Web.

21st century

• 2016 – The Paris Agreement, a landmark international treaty on climate change mitigation, adaptation, and finance, is opened for signature at the United Nations headquarters in New York.

Births

Pre-20th century

• 1451 – Isabella I of Castile, Queen of Spain (d. 1504)
• 1724 – Immanuel Kant, German philosopher and academic (d. 1804)
• 1870 – Vladimir Lenin, Russian lawyer and revolutionary, founder of the Russian SFSR (d. 1924)

20th century

• 1904 – J. Robert Oppenheimer, American theoretical physicist and director of the Manhattan Project (d. 1967)
• 1916 – Yehudi Menuhin, American violinist and conductor (d. 1999)
• 1937 – Jack Nicholson, American actor, director, and producer
• 1950 – Peter Frampton, English singer-songwriter and guitarist
• 1957 – Donald Tusk, Polish historian and politician, 14th Prime Minister of Poland
• 1974 – Shavo Odadjian, Armenian-American bass player and songwriter
• 1980 – Rodrigo Hilbert, Brazilian actor and model
• 1982 – Kaká, Brazilian footballer
• 1986 – Amber Heard, American actress
• 1987 – David Luiz, Brazilian footballer

Deaths

Pre-20th century

• 296 – Pope Caius
• 455 – Petronius Maximus, Roman Emperor (b. 396)
• 1616 – Miguel de Cervantes, Spanish novelist, poet, and playwright (b. 1547)

20th century

• 1994 – Richard Nixon, American lieutenant, lawyer, and politician, 37th President of the United States (b. 1913)

21st century

• 2018 – Verne Troyer, American actor, comedian, and YouTuber (b. 1969)

Holidays and observances

• Earth Day (International)
• Discovery Day (Brazil)
• Lenin Day (Communist parties worldwide)
• Christian feast day:

* Pope Caius
* April 22 (Eastern Orthodox liturgics)