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How did margaret thatcher de-escalate the cold war

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.

What important waterway was controlled through the victory at fort crown point? the st. lawrence river the hudson river the great lakes lake champlain