Egyptian Begin Turquoise Mining

Egyptians began turquoise mining operations of the Sinai peninsula before 3400 BCE. Continue reading

Sojourner Roving Robot on Mars

The Sojourner robot was sent to explore Mars’ planet surface as per the Pathfinder mission launch from Cape Canaveral, FL, USA, on December 4, 1996 and landing on July 4, 1997 Continue reading

First Round the World Non-Stop Flight

A B-50 Superfortress plane, Lucky Lady 11 made the first round the world non-stop flight from Carswell Air Force Base, Fort Worth, TX, on February 26, 1949, piloted by U.S. Captain James Gallagher. Continue reading

Chemist Examines Crystallized Juice by Microscope

Andreas Sigismund Marggraf, chemist and Director of the chemical laboratory at the German Academy of Sciences, Berlin (1754- 1760). Continue reading

Inauguration of International Airmail Service

International airmail service was inaugurated on March 3, 1919, between Seattle, WA, USA, and Victoria, BC, Canada Continue reading

Simon Bolivar

Simón José Antonio de la Santísima Trinidad Bolívar y Palacios Ponte-Andrade y Blanco (24 July 1783 – 17 December 1830), generally known as Simón Bolívar (Spanish: [siˈmom boˈliβaɾ] (listen),[a] English: /ˈbɒlɪvər, -vɑːr/ BOL-iv-ər, -⁠ar also US: /ˈboʊlɪvɑːr/ BOH-liv-ar) and also colloquially as El Libertador,[4] or the Liberator, was a Venezuelan military and political leader who led what are currently the states of Venezuela, Bolivia, Colombia, Ecuador, Peru, and Panama to independence from the Spanish Empire. Continue reading

Virginia Eshelman Johnson

Virginia E. Johnson, born Mary Virginia Eshelman (February 11, 1925 – July 24, 2013), was an American sexologist, best known as a member of the Masters and Johnson sexuality research team. Continue reading

William Howell Masters

William Howell Masters (December 27, 1915 – February 16, 2001) was an American gynecologist, best known as the senior member of the Masters and Johnson sexuality research team. Continue reading

Venter Completes DNA Sequencing

Craig Venter at the Institute for Genomic Research in Gaithersburg, MD, USA created a complete DNA sequencing of a free-living organism in May 1997. Continue reading

First Alkaline Dry Cell Battery

American inventor, Thomas Alva Edison developed the alkaline dry cell battery in West Orange, NJ, USA in 1914. Continue reading