What Happened on April 22?
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events
births
deaths
holidays
EVENTS ON APRIL 22
Explore the most important historical events that happened on April 22, featuring key moments that shaped the world.
World War I
Year:
1915
World War I: The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
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Spanish–American War
Year:
1898
Spanish–American War: President William McKinley calls for 125,000 volunteers to join the National Guard and fight in Cuba, while Congress more than doubles regular Army forces to 65,000.
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London Naval Treaty
Year:
1930
The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
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Greenland in World War II
Year:
1944
World War II: In Greenland, the Allied Sledge Patrol attack the German Bassgeiger weather station.
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1st Special Operations Wing
Year:
1944
The 1st Air Commando Group using Sikorsky R-4 helicopters stage the first use of helicopters in combat with combat search and rescue operations in the China Burma India Theater.
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BIRTHS ON APRIL 22
Discover famous people and historical figures born on April 22, including leaders, artists, scientists, and cultural icons.
Kaneto Shindo
Year of birth:
1912
Kaneto Shindo, Japanese director, producer, and screenwriter (died 2012)
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Norman Steenrod
Year of birth:
1910
Norman Steenrod, American mathematician and academic (died 1971)
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Rita Levi-Montalcini
Year of birth:
1909
Rita Levi-Montalcini, Italian neurologist and academic, Nobel Prize laureate (died 2012)
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DEATHS ON APRIL 22
Look back at notable individuals who passed away on April 22, and learn about their lasting influences on history.
Ferenc Oslay
Year of death:
1932
Ferenc Oslay, Hungarian-Slovene historian and author (born 1883)
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Henry Royce
Year of death:
1933
Henry Royce, English engineer and businessman, co-founded Rolls-Royce Limited (born 1863)
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HOLIDAYS ON APRIL 22
See which holidays, observances, and special celebrations take place on April 22 around the world.
April 22 (Eastern Orthodox liturgics)
Christian feast day: April 22 (Eastern Orthodox liturgics)
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Earth Day
Earth Day (International observance) and its related observance: International Mother Earth Day
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