What is the main reason for lynchings in the late 1800s and early 1900s

How did americans disagree over the role of federal and state goverment before and durning the civil war

What was the most common destination for african american migrants between 1910 and 1930

President of the united states has scheduled a cabinet meeting today to discuss energy policy with specific focus on pollution and global warming. given what you know of the executive branch, which group of attendees would the president most likely expect to provide up-to-date information and expert insight during this meeting?