Herman Hollerith

Historical marker location:

1054 31st Street Northwest, Georgetown, District of Columbia

( Marker is at the intersection of 31st Street Northwest and C&O Canal Towpath Northwest, on the right when traveling south on 31st Street Northwest.)

Marker installed: 1984

Tabulating Machine

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."