Smallpox was an infectious disease caused by either two variants, Variola major and Variola minor. Smallpox is a virus evolved during 16,000 to 68,000 years ago. It probably one of the biggest threat to the ancient people. The most common symptoms of all were you can see little dots growing from your skins all over your body.The first obvious symptoms of the disease is around 12 ~15 days.The procedure which used to prevent smallpox was inoculation, occurred in India, Africa, and China well before the practice arrived in Europe. The earliest credible evidence of smallpox is found in the smallpox-like disease in medical writings from ancient India (as early as 1500 BC),Egyptian(1145 BC) and also in China (1122 BC). In now days the people are
