Why did the us get involved in vietnam

What is zinn's approach to the study of history? what does he suggest occurs when history is told is the story of human progress?

Imagine you are a historian studying a battlefield journal written by a soldier serving in world war i. describe the process of interpreting the information within the journal, as well as how you would determine whether the evidence in the journal is valid

Which of the following factors care of many european nations to occupy and colonize nations in southeast asia