People of Irish descent are the second largest self-reported ethnic group in the United States, after German Americans. Nine of the signatories of the American Declaration of Independence were of Irish origin.eople of Irish descent are found mainly in English-speaking countries; especially Great Britain, the United States, Canada and Australia. There are also significant numbers in Argentina and Mexico.
Despite its long history, the Great Wall of China as it is exists today was constructed mainly during the mighty Ming dynasty (1368-1644). Like the Mongols, the early Ming rulers had little interest in building border fortifications, and wall building was limited before the late 15th century.
exists and is an alternate of . The Great Wall of China is a Chinese fortification built from 3rd century BC until the beginning of the 17th century, in order to protect the various dynasties from raids by Mongol, Turkic, and other nomadic tribes coming from areas in modern-day Mongolia and Manchuria. It was to protect China from the invasion of the Xiongnu people from Mongolia.