Exploration

 US #1759 was issued on the 2nd anniversary of Viking I’s Mars landing.
July 20, 1976

Viking I Lands on Mars

On July 20, 1976, Viking I became the first man-made object to land on Mars. As early as 1966, officials recommended that research objectives in the post-Apollo era focus on the unmanned exploration of Mars.  The Viking 1 mission – with a landing planned to coincide with the nation’s July 4, 1976, Bicentennial celebration – set off to accomplish that goal on August 20, 1975.

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 US #802 pictures Charlotte Amalie Harbor on the island of St. Thomas.
July 3, 1848

Emancipation Day in the Virgin Islands 

On July 3, 1848, Governor Peter von Scholten abolished slavery in the Virgin Islands. The Virgin Islands are part of the Lesser Antilles island chain and the Leeward Islands group in the Caribbean Sea, located just east of Puerto Rico.  They include more than 50 islands, but the largest are St. Thomas, St. John Island, and St. Croix.

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1992 29c Juan Rodriguez Cabrillo Colorano Silk First Day Cover (Combination Cover)
June 27, 1542

Juan Cabrillo Embarks on Journey 

On June 27, 1542, Juan Rodriguez Cabrillo departed New Spain (present-day Mexico) in search of a water route between the Atlantic and Pacific. He’s considered to be the first European to travel the California coast and many spots in that state are named in his honor.

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 Canada #208 was issued for the 400th anniversary of Cartier’s first trip to Canada.
June 9, 1534

Cartier Explores St. Lawrence River 

On June 9, 1534, Jacques Cartier became the first European explorer to travel the St. Lawrence River.

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 U.S. #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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1994 29¢ Legends of the West: Kit Carson
December 24, 1809

Birth of Kit Carson 

Christopher Houston Carson was born December 24, 1809, in Richmond, Kentucky. Better known as Kit Carson, his contributions to the westward expansion of the United States rank him as one of the nation’s great folk heroes.

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1994 29c Legends Of The West: Sacagawea Mystic First Day Cover
December 20, 1812

Death of Sacagawea 

December 20, 1812, is generally believed to be the day that Sacagawea died in Kenel, South Dakota.

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 U.S. #U617 – America’s first hologram envelope with a silk cachet.
December 3, 1989

First U.S. Hologram Postal Stationary

On December 3, 1989, the USPS issued its first postal item to be produced with a hologram – a 25¢ stamped envelope picturing a space shuttle docking at a space station.

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1935 3¢ Byrd Antarctic Expedition
October 25, 1888

Birth of Richard Byrd

Aviator and South Pole explorer Richard Evelyn Byrd was born on October 25, 1888, in Winchester, Virginia.

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