. They reduced competition in the western part of the ... affect western settlement in the late 1800s
The major challenges to historical research revolve around the problems of sources, knowledge, explanation, objectivity, choice of subject, and the peculiar problems of contemporary history. Sources The problem of sources is a serious challenge to the historian in the task of reconstructing the past.
Answer:
yes I think
Explanation:
the Aztecs had fewer disease than Europeans
The Gulf of Tonkin Resolution was created and used during the Vietnam War. The resolution gave the president nearly unlimited control over the U.S. military.
