March 1941

Saturday 01:

W47NV (now known as WSM-FM) begins operations in Nashville, Tennessee becoming the first FM radio station in the U.S..

Tuesday 04:

Britain launches Operation Claymore on the Lofoten Islands, during World War II.

Tuesday 11:

World War II: President Franklin Delano Roosevelt signs the Lend-Lease Act into law, allowing American-built war supplies to be shipped to the Allies on loan.

Monday 17:

In Washington, DC, the National Gallery of Art is officially opened by President Franklin D. Roosevelt.

Saturday 22:

Washington's Grand Coulee Dam begins to generate electricity.

Tuesday 25:

Kingdom of Yugoslavia joins the Axis powers.

Friday 28:

In the Mediterranean Sea, British Admiral Andrew Browne Cunningham leads the Royal Navy in the destruction of three major Italian battleships and two destroyers.

Saturday 29:

World War II: British Royal Navy and Royal Australian Navy forces intercept those of the Italian Regia Marina off the Peloponnesus coast of Greece in the Battle of Cape Matapan.