... , it became the first and most profound statement in the Scientific Revolution, a period of approximately 100 years that ultimately propelled the world into its contemporary nuclear age. Copernicus, like Columbus, blazed a path that others were able to follow. In 1803, Meriwether Lewis and William Clark set out on an expedition that led to the opening of the West in the United States. The Louisiana Purchase had given the new nation of the United States land that extended to the Pacific Ocean, but how was ...
