Question: Which 18th-century frontier fort at the current site of Cumberland, Maryland, USA was an important military and economic center during the war, 1756-63, that pitted the colonies of British America against those of New FranceFrance?
Sentence (from "Fort Cumberland (Maryland)"): It was an important military and economic center during the French and Indian War (1754–63) and figured significantly in the early career of George Washington.
Relevant evidence: Yes