Explain ONE way in which international interactions affected human rights issues in the late 20th century

Did the spanish settlers and missions have a positive effect on world history? why, what did they do that was positive? why was the treaty of paris (1763) good for the world/world history? did the plymouth colony have a positive effect on world history? why, what did they do that was positive?

People who move from place to place for survival is called

What is the name of the social stratification set up by the vedic peoples of the indus river valley civilization