Inscription
Milestone in Radio History Here, on Cobb Island, in December, 1900, Reginald Aubrey Fessenden, assisted by Frank W. Very, while experimenting in wireless telephony, for the first time sent and received intelligible speech by electromagnetic waves between two masts 50 feet high and one mile apart. Maryland Historical Society
Location
Sources
More markers in Charles
Courthouse at Moore's Lodge
La Plata, MD
Charles County was created by the Maryland General Assembly in 1658.
Chandlers Hope
La Plata, MD
Chandlers Hope 2 miles Job Chandler, first Charles County settler, built the oldest part of this house, 1639-1650, aided by the Potopaco...
General Daniel E. Sickles, USA
Doncaster, MD
General Daniel E. Sickles U.S.A. Commander of the "Excelsior Brigade," New York Volunteers, maintained headquarters here October, 1861 to...
Indian Head
Indian Head, MD
Indian Head Site of Indian tribes prior to the first settlers Since 1890 a proving grounds and propellant research center for the United...
Christ Church Episcopal
La Plata, MD
Christ Church Episcopal Parish church of Port Tobacco Parish, one of the 30 church of England parishes established, 1692, by act of the...
