Invention of the telegraph

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:historical_event
gptkbp:enables	long-distance communication
gptkbp:firstCommercialUseYear	1839
gptkbp:firstDemonstrationYear	1837
http://www.w3.org/2000/01/rdf-schema#label	Invention of the telegraph
gptkbp:ledTo	gptkb:telegraph gptkb:Morse_code
gptkbp:locationOfFirstLine	gptkb:England gptkb:United_States
gptkbp:notableInvention	gptkb:Joseph_Henry gptkb:Samuel_Morse gptkb:Charles_Wheatstone gptkb:William_Fothergill_Cooke
gptkbp:occurredIn	gptkb:19th_century
gptkbp:relatedTo	gptkb:telegraph
gptkbp:bfsParent	gptkb:pre-Civil_War_United_States
gptkbp:bfsLayer	6