what are the major impacts/significnce that the Qing Dynasty did to china?

The Qing Dynasty is as important as Tang, Song, Yuan and Ming. It brought much significance and many impacts to the modern China. In the aspect of its significance, I want to talk about three points. First, it consolidated the territory of China; second, it assured the unity of 56 ethnic groups; third, it passes on traditional Chinese culture. Although the rulers of Qing are Man people (not the Han people), they still encourage to develop the culture of the Han. The negative impact, I think, should be its policy of 'closed cloorism', which made China isolated from other countries. As a result, China cannot have chances to get touch with the outside. Very quickly, China started to fall behind the other powerful countries. If a country is too weak, it will be bullied by other countries. So,you can read the history of Chinese modern times.

They came into play right after the Ming dynasties collapse. The Ming dynasty went into total isolation after Ming emperor Yongle died and they also lost their trading advantage(s) to the Portuguese after they stopped trading.