With the exception of Native Americans, all persons living in the United States are descended from immigrants or slaves who came to the country during the last 400 years. By the late seventeenth century, foreign-born persons constituted seventy-five... | READ MORE >
The early explorers and settlers of the United States took full advantage of the abundant game to be found in the new lands they were beginning to inhabit. The ability to hunt wild animals for food not only offered a means for survival, but also allowed... | READ MORE >
Much of the 3,000-mile (4,828kilometer) Great Wall of China was constructed during the Ming Dynasty (1368-1644) [see timeline of Chinese history] to prevent attacks from rival forces, although officials as early as the fifth century BCE also built... | READ MORE >
