Science

 US #1285 from the Prominent Americans Series.
March 14, 1879

Happy Birthday, Albert Einstein

Happy Birthday, Albert Einstein

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1973 Togo sheet honoring Copernicus
February 19, 1473

Birth of Nicolaus Copernicus 

Nicolaus Copernicus was born on February 19, 1473, in Thorn, Poland.

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 US #3187d from the Celebrate the Century: 1950s sheet.
January 31, 1958

Launch of Explorer I 

Late in the evening of January 31, 1958, the US launched its first satellite, Explorer I.

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 US #2544 pictures Challenger above Earth during one of its missions.
January 28, 1986

The Space Shuttle Challenger Disaster

On January 28, 1986, the space shuttle Challenger broke apart during the launch of its 10th mission.

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2012 45¢ Danny Thomas
January 6, 1912

Birth of Danny Thomas

Performer and philanthropist Danny Thomas was born Amos Muzyad Yaqoob Kairouz on January 6, 1912, in Deerfield, Michigan.  In addition to his successful performing career, Thomas was the founder of St. Jude Children’s Research Hospital.

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1991 29¢ Space Exploration: Venus
December 14, 1962

Mariner 2 Flies By Venus

On December 14, 1962, Mariner 2 became the first spacecraft to fly by Venus. Mariner 2 sent back a wealth of data about the planet, revealing many facts unknown up to that point.

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1978 13¢ Resolution – Hawaii
November 7, 1728

Birth of Explorer James Cook

British explorer and navigator Captain James Cook was born on November 7, 1728 (October 27 in the Old Style calendar), in Marton, Yorkshire, England. 

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 US #1268 was issued for Dante’s 700th birthday. Click image to order.
September 14, 1321

Death of Dante Alighieri

The “Supreme Poet” Dante Alighieri is believed to have died on September 14, 1321.

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 US #2281 was issued on this day in 1988. Click image to order.
September 2, 1988

First U.S. Combination-Process Coil

On September 2, 1988, the USPS issued its first coil stamp printed by two totally different procedures.

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