Answer:
Osama bin Laden's declaration of a holy war against the United States, and a fatwā signed by bin Laden and others for the killing of Americans in 1998, are seen by investigators as evidence of his motivation.
Because they were banned for life after one was killed
Most black soldiers were scattered throughout the Continental Army in integrated infantry regiments, where they were often assigned to support roles as wagoners, cooks, waiters or artisans. African Americans also served as gunners, sailors on privateers and in the Continental Navy during the Revolution.
African-Americans fought for both sides, providing manpower to both the British and the revolutionaries.
Because during that time railroad company's would monopolies on farmers and the act required them to have a reasonable and just cost to use railroads. Hope this helps.
