Americans of German-descent top the list of U.S. ethnic groups, followed by Irish, 35.8 million; Mexican, 31.8 million; English, 27.4 million; and Italian, 17.6 million, analysis of Census and American Community Survey data shows.mid the surge of Hispanics, the largest ethnic group in the U.S. is still German-Americans, with a population of 49.8 million, a jump of 6 million between 2000 and 2010.
Great Wall History. The history of the Great Wall is said to have started from the Spring and Autumn Period (770 - 476 BC). Over the following 2,000 years, more than 20 states and dynasties played a part in its construction. The accumulative length of the wall exceeds 31,069 miles (50,000 km). Zhou Dynasty (1046 - 256 BC)
The Great Wall of China was built over a period of about 17 centuries, between approximately 220 BC to the 17th century AD. The most well-known section of the Great Wall, located 43 miles northwest of Beijing, was built between the 14th and 17th centuries AD. The Great Wall is known, in China, as the Long Wall of Ten Thousand Li..