Improvements and construction of roads and canals.
In the nineteenth century, Mexican American, Chinese, and white populations of the United States collided as white people moved farther west in search of land and riches. Neither Chinese immigrants nor Mexican Americans could withstand the assault on their rights by the tide of white settlers.
Answer:
migration; diffusion
Explanation:
With the migration of people from fertile areas, knowledge of agriculture spread by diffusion.
Answer:
Caliphs and the Ummayad Caliphate.
Explanation:
One that that historiography suggests about history is that history will always be open to interpretation.
