Soviet-Canadian Polar Bridge Expedition
On April 25, 1988, the Soviet-Canadian Polar Bridge Expedition reached the North Pole.
Science
Birth of Leonardo da Vinci
Renaissance Man Leonardo da Vinci was born on April 15, 1452, in Vinci, Republic of Florence, Italy.
First Man in Space
On April 12, 1961, Soviet cosmonaut Yuri Gagarin became the first person to travel into space.
Final Mission to the Moon
On December 11, 1972, Apollo 17 became the last manned NASA mission to the Moon.
First Solar Eclipse Over the U.S. in 38 Years
August 21, 2017, marks the first total solar eclipse of the sun to pass over the United States since 1979.
Lewis and Clark’s Journey Begins
On May 21, 1804, Lewis and Clark’s Corps of Discovery departed St. Charles on the Missouri River to begin their exploration of the American West.
Edison’s First Successful Test of Electric Light Bulb
On October 22, 1879, Thomas Edison staged his first successful test of an electric light bulb with a carbon filament.