Sean is a very popular first name for men (#94 out of 1220, Top 8%) and also a very popular surname for both adults and children (#31492 out of 150436, Top 21%). (2000 U.S. Census).
Follow Us: Membership. The Great Wall of China is a barrier fortification in northern China running west-to-east 13,171 miles (21,196 km) from the Jiayuguan Pass (in the west) to the Hushan Mountains in Liaoning Province in the east, ending at the Bohai Gulf.
The Great Wall of China is not a continuous wall but is a collection of short walls that often follow the crest of hills on the southern edge of the Mongolian plain. Overall, the wall extends about 1500 miles (2400 kilometers). A first set of walls, designed to keep Mongol nomads out of China, were built of earth and stones in wood frames during the Qin Dynasty (221-206 BCE).