Fact #3554 in "Other" Category
#3554 - Other Fact     2  The official time ball for the U.S. is on top of the U.S. naval Observatory in Washington, DC As early as 1845, the U.S. Navy dropped a time ball every noon from atop a building on a hill overlooking Washington, DC. People from many miles could set their watches at noon. Ships anchored in the Potomac River could check their chronometers. |
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