數學家和天文學家,班哲明‧班尼卡出生,1731年11月9日 |
1791年華盛頓區的計畫,班尼卡 (Banneker) 為我們首都進行丈量工作。 出處: Ellicott, Andrew, surveyor. "Plan of the city of Washington in the territory of Columbia: ceded by the states of Virginia and Maryland to the United States of America, and by them established as the seat of their government, after the year MDCCC / engrav'd by Sam'l Hill, Boston; in order to execute this plan, Mr. Ellicott drew a true meridional line ... " s.n., 1792. Map Collections: 1544-1999, Library of Congress. |
美國國會圖書館 | 法律聲明 | 隱私權聲明 | 網站地圖 | 與我們連絡 |