The document summarizes Alfred Wegner's theory of continental drift. It describes how Wegner, a German scientist, was intrigued by similarities between fossils found on different continents. Through his studies of coastline shapes and fossil evidence, Wegner proposed that the continents were once joined together and have since drifted apart, forming the continental configurations seen today. Wegner's theory was initially met with skepticism by other scientists but he continued gathering evidence to support his theory of plate tectonics and continental movement.