The Manchus are an ethnic group from northeastern China, originally known as the Jurchens. They played a significant role in Chinese history by founding the Qing Dynasty in the 17th century, which lasted until the early 20th century. The Manchus were skilled horsemen and warriors, and they united various tribes to establish their rule over China. During the Qing Dynasty, the Manchus implemented policies that blended their culture with Han Chinese traditions. They promoted the Eight Banners military system and encouraged trade and agriculture. The dynasty is known for its territorial expansion and cultural achievements, leaving a lasting impact on Chinese society.