WHAT ALL HAPPENED MARCH TO APRIL 1941
Find out what all happened March to April 1941

World War II: First German military units enter Bulgaria after it joins the Axis Pact. (2. March 1941)

Bob Feller of the Cleveland Indians throws the only Opening Day no-hitter in the history of Major League Baseball, beating the Chicago White Sox 1-0. (16. April 1941)

The Blockade Runner Badge for the German navy is instituted. (1. April 1941)

World War II: Bulgaria signs the Tripartite Pact, allying itself with the Axis powers. (1. March 1941)

World War II: The Italian convoy Duisburg, directed to Tunisia, is attacked and destroyed by British ships. (16. April 1941)

In the Belfast Blitz, two-hundred bombers of the German Luftwaffe attack Belfast, Northern Ireland, United Kingdom killing one thousand people. (15. April 1941)

Fantana Alba massacre: between 200 and 2,000 Romanian civilians are killed by Soviet Border Guards. (1. April 1941)

A military coup in Iraq overthrows the regime of 'Abd al-Ilah and installs Rashid Ali as Prime Minister. (1. April 1941)

World War II: The United Kingdom launches Operation Claymore on the Lofoten Islands; the first large scale British Commando raid. (4. March 1941)

World War II: The Greek government and King George II evacuate Athens before the invading Wehrmacht. (23. April 1941)

World War II: The Ustashe, a Croatian far-right organization is put in charge of the Independent State of Croatia by the Axis Powers after the Axis Operation 25 invasion. (14. April 1941)

The North American Radio Broadcasting Agreement goes into effect at 03:00 local time. (29. March 1941)

A Pact of neutrality between the USSR and Japan is signed. (13. April 1941)

The Kingdom of Yugoslavia joins the Axis powers with the signing of the Tripartite Pact. (25. March 1941)

World War II: The Communist Party of Slovenia, the Slovene Christian Socialists, the left-wing Slovene Sokols (also known as "National Democrats") and a group of progressive intellectuals establish the Liberation Front of the Slovenian People. (27. April 1941)

World War II: British Royal Navy and Royal Australian Navy forces defeat those of the Italian Regia Marina off the Peloponnesian coast of Greece in the Battle of Cape Matapan. (29. March 1941)

World War II: Nazi Germany launches Operation 25 (the invasion of Kingdom of Yugoslavia) and Operation Marita (the invasion of Greece). (6. April 1941)

World War II: The Axis powers in Europe establish the Independent State of Croatia from occupied Yugoslavia with Ante Pavelić's Ustaše fascist insurgents in power. (10. April 1941)

World War II: Yugoslavian Air Force officers topple the pro-Axis government in a bloodless coup. (27. March 1941)

In Washington, D.C., the National Gallery of Art is officially opened by President Franklin D. Roosevelt. (17. March 1941)