HAPPENIN’ OTSEGO for TUESDAY, FEBRUARY 18 Remembering Our First President HISTORY – 6:30 p.m. Learn how our memory of the First US President has changed over time in ‘The Property of the Nation: George Washington’s Tomb, Mount Vernon, and the Memory of the First President’ presented by author Matthew R. Costello, Senior Historian White House Historical Association. Fort Plain Museum, 389 Canal St., Fort Plain. 518-993-2527 or visit www.fortplainmuseum.com/viewevent.aspx?ID=1053…