Pi Day derives from the three-digit approximation of "pi" - 3.14.
It is usually celebrated at 1:59 (in recognition of the six-digit approximation: 3.14159).
1757
Admiral Sir John Byng is executed by firing squad aboard HMS Monarch for breach of the Articles of War.
He knelt on a cushion before the firing squad on the quarter deck and then dropped his hankie as a signal to fire.
1869
Writer, farmer, bartender, model, journalist, private secretary, businessman, and violin teacher, Algernon Blackwood (Incredible Adventures) born in Shooter's Hill, Kent, England.
1863
Illinois Central Railroad engineer Casey Jones born in Jackson, Tennessee.
1879
Physicist Albert Einstein born Ulm, Bavaria.
1887
Sylvia Beach, the founder of Shakespeare and Company, born in her father's parsonage in Baltimore.
1898
Painter and illustrator Reginald Marsh born in Paris, France.
1903
Painter and sculptor Adolph Gottlieb born in New York City.
1911
Japanese origamist Akira Yoshizawa born in Kaminokawa, Japan.
1912
Saxiphonist and Big Bandleader Les Brown born in Reinerton, Pennsylvania.
1916
Playwright and screenwriter Horton Foote (Tender Mercies) born in Wharton, Texas.
1920
Cartoonist Hank Ketcham (Dennis the Menace) born in Seattle, Washington.
1923
Photographer Diane Arbus born in New York.
1933
Actor Michael Caine (The Man Who Would Be King) born in London, England.
Record producer, conductor, arranger, composer, television producer, film producer, instrumentalist, and jazz trumpeter,Quincy Jones born in Chicago, Illinois.
1939
John Steinbeck's The Grapes of Wrath published.
1952
Singer, songwriter, musician, record producer, artist, actor, writer and filmmaker David Byrne (Talking Heads) born in Dumbarton, Scotland.
1989
American naturalist novelist, 'Cactus' Ed Abbey dies in Oracle, Arizona.