During which phase of Reconstruction did the Southern States come under Martial law?

Which of the following flow charts accurately illustrates the history of constitutional amendments in the united states?

Why might congress have had difficulty paying the war debt after the american revolution

In ohio in 1872, the cleveland massacre was a)a violent labor dispute at standard oil refineries in cleveland. b)a takeover by standard oil of the refineries in cleveland. c)an attempt to stop standard oil from becoming a monopoly. d)a failed attempt by standard oil to take over other refineries.