What were the achievements of the Yuan and Ming dynasties?

Yuan Dynasty ruled over China from 1271 to 1368. Many developments in economy, science, engineering, mathematics, printing, astronomy, medicine, painting, poetry, calligraphy and other forms of art took place during its reign.

Explanation:

Majority of the existing Great Wall of China was built in the Ming era.

seven epic voyages were led by the great Chinese admiral Zheng He.

Ming period saw great development in printing.

The most comprehensive book on traditional Chinese medicine was written

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native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.