Technology

Launch of Apollo 15
On July 26, 1971, Apollo 15 was launched, bringing the fourth American crew to the Moon’s surface.

U.S. Lands First Men On The Moon
On July 20, 1969, the US effectively won the Space Race when Neil Armstrong and Buzz Aldrin landed the Eagle lunar module on the Moon’s surface.

Premiere of the First Ferris Wheel
On June 21, 1893, the Ferris wheel debuted at the World’s Columbian Exposition in Chicago.

American Architecture Series
On June 4, 1979, the USPS issued the first block of four stamps in the American Architecture Series, which honors the evolution of American architecture over the last two centuries.

Opening of Seattle World’s Fair
On April 21, 1962, the Seattle World’s Fair, also known as the Century 21 Exposition, opened to the public.

Launch of Pioneer 11
On April 5, 1973 (some sources cite April 6 UTC (Coordinated Universal Time), the Pioneer 11 space probe launched from Cape Canaveral, Florida.

Birth of Linus Pauling
American scientist Linus Pauling was born on February 28, 1901, in Portland, Oregon.

U.S. Launches First Nuclear Submarine
On January 21, 1954, the USS Nautilus, the world’s first operational nuclear-powered submarine, was launched.

Wright Brothers’ Famed First Flight
On December 17, 1903, brothers Wilbur and Orville Wright made the first successful heavier-than-air flight at Kitty Hawk, North Carolina.