Technology

First U.S. Space Shuttle Docking to Mir
On June 29, 1995, the U.S. Space Shuttle Atlantis docked the Russian space station Mir for the first time. The mission, STS-71, was the third in the U.S./Russian Shuttle-Mir program. It began on June 27, 1995, when the Atlantis launched from Kennedy Space Center in Florida. This was the 100th U.S. human space launch from Cape Canaveral.

Opening of the Chrysler Building
On May 27, 1930, the Chrysler Building, the tallest man-made structure at the time, opened to the public.

Centennial International Exhibition
On May 10, 1876, the first official World’s Fair in the United States was held in Philadelphia, Pennsylvania.

Pan-American Exposition & Stamps
The Pan-American Exposition opened to the public on May 1, 1901, in Buffalo, New York. That same day the set of six Pan-American stamps went on sale.

Opening of the 1964 New York World’s Fair
On April 22, 1964, the New York World’s Fair opened at Flushing Meadows Park in Queens, New York.

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.

Formation of the World Health Organization
On April 7, 1948, the World Health Organization (WHO) was officially created as a specialized agency of the United Nations.

First American Orbit of Earth
On February 20, 1962, John Glenn became the first American to orbit the Earth aboard his Friendship 7 capsule.

Pluto Discovered
On February 18, 1930, Clyde Tombaugh discovered Pluto after nearly a year of searching.