Duquesne
Chandler's Encyclopedia · 1898 · p. 27
ForT. Built by the French on the site of Pittsburg, Pa., 1754; taken by the English 1758.
Bu kavram başka kaynaklarda da geçiyor
British Encyclopedia (1933)
Adair's New Encyclopedia (1923)
Everybody's Encyelopedia (1912)
Webster's Practical Dictionary- A Practical Dictionary of the Englih Language (1884)
Zell's Condensed Dictionary (1879)
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