Alexander Fleming notices a bacteria-killing mold growing in his laboratory, discovering what later became known as penicillin. Here are four paragraphs on Alexander Fleming’s discovery…

Race riots begin in Omaha, Nebraska, United States The Omaha Race Riot of 1919 was one of the many violent racial conflicts that erupted across…

The General Conference on Weights and Measures (CGPM) defines the length of a metre The General Conference on Weights and Measures (often abbreviated as CGPM,…

The cruise ferry MS Estonia sinks in the Baltic Sea, killing 852 people The MS Estonia was a cruise ferry that tragically sank in the…

Race riots begin in Omaha, Nebraska.

The General Conference on Weights and Measures (CGPM) defines the length of a meter.

The first aerial circumnavigation is completed by a team from the US Army.

The cruise ferry MS Estonia sinks in the Baltic Sea, killing 852 people. [rdp-wiki-embed url=’https://en.wikipedia.org/wiki/MS_Estonia’]

Race riots start in Omaha, Nebraska. Race riots rocked Omaha, Neb., on Sept. 28–29, 1919. The result of the riots was the lynching of Will…