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T U E S D A Y

There are few more ostentatious displays of wealth than idle, uncultivated land, and in the past half-century millions of Americans have aspired to something once possible only for owners of manor houses and chateaux: the lawn. In her lecture, “At War With the Environment: The Lawn in Post-World War II America,” Virginia Scott Jenkins will explain the aesthetics, economics, and environmental impact of those fake putting greens that surround so many suburban homes. Jenkins, author of The Lawn: A History of an American Obsession, speaks at 6:30 p.m. at the National Building Museum, 401 F St. NW. FREE. For reservations call (202) 272-2448. (MJ)