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During the 19th century, the greatest threat to Washington, DC was by water. This narrow section on the Potomac River was an ideal location for a coastal defense. Fort Warburton was built on the Maryland side in 1808 as tensions escalated between . . . — — Map (db m181018) HM
One of the most progressive farmers of his day, George Washington believed America’s future depended on improvements in agriculture. From 1754-1799, he worked to improve his farming methods at Mount Vernon. Abandoning tobacco, which depleted the . . . — — Map (db m829) HM