U. S. Post Office Department

Historical marker location:

1200 Pennsylvania Avenue Northwest, Federal Triangle, District of Columbia

( Marker can be reached from 12th Street Northwest north of Constitution Avenue Northwest (U.S. 50), on the left when traveling north.)

Marker installed: 1934

Ariel Rios Federal Building. Woodrow Wilson Plaza.

The District was originally called "Federal City": The name "Washington, D.C." was not officially adopted until the late 19th century. Before that, the city was referred to as "Federal City" or simply "Washington."