What happend on 22nd February

21.02
23.02
1956

Elvis Presley enters the music charts for the first time, with "Heartbreak Hotel".

1949

Grady the Cow, a 1,200-pound cow gets stuck inside a silo on a farm in Yukon, Oklahoma and garners national media attention.

1948

Start of the Czechoslovak Revolution.

1943

Members of White Rose are executed in Nazi Germany.

1942

World War II: President Franklin D. Roosevelt orders General Douglas MacArthur out of the Philippines as American defense collapses.

1924

Calvin Coolidge becomes the first President of the United States to deliver a radio broadcast from the White House.

1923

The United States begins the first transcontinental air mail route.

1923

Barcelona (Catalonia): Albert Einstein visits the city, invited by the scientist Esteban Terradas i Illa, as part of the monografics course of High Studies and Exchange organized by the Mancomunitat de Catalunya and conducted by Rafael de Campalans.

1920

In Emeryville, California, the first dog race track to employ an imitation rabbit opens.

1915

Germany institutes unrestricted submarine warfare.