In Chinese history, the Han Dynasty consisted of two dynasties: the Western Han Dynasty (206 BC - 24 AD) and the eastern han dynasty (25 - 220). During the period there were 24 emperors on the throne. Many were excellent contributing to the prosperity of the country with Emperors Gaozu, Wen, Jing and Wu among them. As many wise emperors took effective measures during their reign, the Han Dynasty was a period of peace and prosperity.