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“Bite-Size Bits of Local, National, and Global History”
 
 
 
 
 
 
4 entries match your criteria.  

 
 

Historical Markers in Cobb Island, Maryland

 
Clickable Map of Charles County, Maryland and Immediately Adjacent Jurisdictions image/svg+xml 2019-10-06 U.S. Census Bureau, Abe.suleiman; Lokal_Profil; HMdb.org; J.J.Prats/dc:title> https://commons.wikimedia.org/wiki/File:Usa_counties_large.svg Charles County, MD (149) Calvert County, MD (153) Prince George s County, MD (602) St. Mary s County, MD (317) Fairfax County, VA (689) King George County, VA (22) Prince William County, VA (647) Stafford County, VA (202) Westmoreland County, VA (103)  CharlesCounty(149) Charles County (149)  CalvertCounty(153) Calvert County (153)  PrinceGeorge'sCounty(602) Prince George's County (602)  St.Mary'sCounty(317) St. Mary's County (317)  FairfaxCountyVirginia(689) Fairfax County (689)  KingGeorgeCounty(22) King George County (22)  PrinceWilliamCounty(647) Prince William County (647)  StaffordCounty(202) Stafford County (202)  WestmorelandCounty(103) Westmoreland County (103)
La Plata is the county seat for Charles County
Cobb Island is in Charles County
      Charles County (149)  
ADJACENT TO CHARLES COUNTY
      Calvert County (153)  
      Prince George's County (602)  
      St. Mary's County (317)  
      Fairfax County, Virginia (689)  
      King George County, Virginia (22)  
      Prince William County, Virginia (647)  
      Stafford County, Virginia (202)  
      Westmoreland County, Virginia (103)  
 
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1Maryland (Charles County), Cobb Island — 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 . . . Map (db m81199) HM
2Maryland (Charles County), Cobb Island — Milestone in Radio HistoryDecember 23, 1900
On December 23, 1900, Reginald Fessenden made the first wireless transmission of human speech; that memorable event took place right here on Cobb Island, Maryland. While Marconi is credited with the invention of the wireless telegraph, it was . . . Map (db m129054) HM
3Maryland (Charles County), Cobb Island — Milestone in Radio HistoryProfessor Frank Very
On December 23, 1900, Reginald Fessenden made the first wireless transmission of human speech between two sets of 50-foot masts erected along the shore of Cobb Island. The message ("Hello. One, two, three, four. Is it snowing where you are Mr. . . . Map (db m129090) HM
4Maryland (Charles County), Cobb Island — Milestone in Radio HistoryReginald Audrey Fessenden
On December 23, 1900, Reginald Fessenden made the first wireless transmission of human speech between two sets of 50-foot masts erected along the shore of Cobb Island. The above message was immediately received by his assistant Alfred Thiessen. . . . Map (db m129091) HM
 
 
  
 
 
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Dec. 4, 2022