Date in year · 1943 · The 1940s

April 13, 1943

On April 13, 1943, world War II: The discovery of mass graves of Polish prisoners of war killed by Soviet forces in the Katyń Forest Massacre is announced, causing a diplomatic rift between the Polish government-in-exile in London and the Soviet Union, which denies responsibility. Margo MacDonald, Richard Smalley, Nikki Giovanni would arrive in the same year.

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Year

1943

1940s

Around 1943

The year in brief

1943 (MCMXLIII) was a common year starting on Friday of the Gregorian calendar, the 1943rd year of the Common Era (CE) and Anno Domini (AD) designations, the 943rd year of the 2nd millennium, the 43rd year of the 20th century, and the 4th year of the 1940s decade.

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What happened

On April 13, 1943

  1. 1943 World War II: The discovery of mass graves of Polish prisoners of war killed by Soviet forces in the Katyń Forest Massacre is announced, causing a diplomatic rift between the Polish government-in-exile in London and the Soviet Union, which denies responsibility.

    1939–1945 global conflict

    World War II, or the Second World War, was a global conflict between two coalitions: the Allies and the Axis powers. Nearly all of the world's countries participated. Tanks and aircraft played major roles, the latter enabling the strategic bombing of cities and delivery of the only nuclear weapons used in war.

  2. 1943 The Jefferson Memorial is dedicated in Washington, D.C., on the 200th anniversary of President Thomas Jefferson's birth.

    National memorial in Washington, D.C.

    , built in honor of Thomas Jefferson, the principal author of the United States Declaration of Independence and the nation's third president. Built between 1939 and 1943, the memorial features multiple quotes from Jefferson intended to capture his ideology and philosophy, known as Jeffersonian democracy. Jefferson was widely considered among the most influential political minds of his era and one of the most consequential intellectual forces behind both the American Revolution and the American Enlightenment.

Elsewhere that year

Other moments from 1943

The class of 1943

Others born in 1943

Margo MacDonald 1943– Scottish journalist and politician (died 2014)
Richard Smalley 1943– American chemist and academic, Nobel Prize laureate in 1996 for chemistry (died 2005)
Nikki Giovanni 1943– American poet, writer and activist (died 2024)
"Superstar" Billy Graham 1943– American wrestler (died 2023)
Colin Baker 1943– English actor
William Calley 1943– American military officer

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