تاریخ اشاعت: 8 فروری 2018 — Canal Construction : Canal Construction 1828-1850 — اخذ شدہ بتاریخ: 3 دسمبر 2019 — اقتباس: On July 4, 1828, President John Quincy Adams turned over a spadeful of dirt during ceremonies at Little Falls, Maryland, and therefore began construction of the Chesapeake and Ohio Canal.