Facts about the Dred Scott Decision, one of the Causes of the American Civil War. Dred Scott Decision summary: Dred Scott was a slave who sought his freedom through the American legal system. The 1857 decision by the United States Supreme Court in the Dred Scott case denied his plea, determining that no Negro, the term then used to describe anyone with African blood, was or could ever be a citizen.
The first transport that resembled the modern bicycle was the running machine (Laufmaschine) invented in 1817 and patented in 1818 by Karl von Drais, a German Baron. The English name was the draisine, and it consisted of a seat between two wooden wheels, which one could push along, then coast.
Classic bell of a bicycle. A bicycle, also called a cycle or bike, is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist. Bicycles were introduced in the late 19th century in Europe, and by the early 21st century, more than 1 billion have been produced worldwide. These numbers far exceed the number of cars, both in total and ranked by the number of individual models produced. They are the principal means of tra