Why did white lawmakers feel that Black Codes were necessary?

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?

What is one aspect of an interpretation of literature

Which pre inca culture was responsible for the geoglyphs