This island was originally used as a military jail and later became a high-security, federal prison. Inmates at "The Rock," as the prison was known, were subjected
to brute force and complete isolation on a daily basis. Al Capone, a Brooklyn
mobster convicted of tax evasion, was one of the prison's most high-profile
detainees, serving time between 1934-39.

Alcatraz  island

Explanation:

an effect of the steamboat's popularity was that people began building canals in the united states and europe. this was done to find another way to transport goods across the country and in that time, transportation using the river was very slow and dangerous. it depended entirely on manpower and the current of the river. that all changed in the late 1700's when steamboats were introduced. they soon revolutionized travel and trade through the river and dominated the waterways. eventually, other means of transportation took over from the steamboats, but there was a time that they the united states to expand to the west.

d.

many people believed they were convicted solely because they were anarchists.