Washington planted 507 Norway maples in 1920 to honor WWI soldiers; the trees later spread into nearby Rock Creek Park as an invasive species

A Norway maple, the species Washington used to line 16th Street as a World War I memorial. (Wikimedia Commons)

You have probably walked down a leafy street without giving a second thought to who planted the trees. On 16th Street in Washington, D.C., the answer is a city remembering the people it lost in World War I. The Association of the Oldest Inhabitants of the District of Columbia notes the city planted the first … Read more