Who were the main leaders of the underground railroad in the early 1840s?

What changes did japanese militarists make when they came to power?

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

Historians sometimes rely on video recordings in researching past events because