It was a very deadly war--the Great War produced new forms of guns, bombs, and gas weapons which proved to be devastating.
The Great War, World War I, saw the emergence of tanks, rapid fire machine guns, grenades, mustard gas, and well as airplanes. The method of trench warfare in addition to highly accurate and deadly weapons led to both large numbers of causalities and stalemates. These weapons made it difficult to move position causing need for new techniques or new technology to allow movement.
French Revolution is about overthrowing the French regime because of tyranny. The American Revolution was about gaining independence from Great Britain.
On January 20, 1961, the handsome and charismatic John F. Kennedy became president of the United States. His confidence that, as one historian put it, “the government possessed big answers to big problems” seemed to set the tone for the rest of the decade. However, that golden age never materialized. On the contrary, by the end of the 1960s it seemed that the nation was falling apart.