http://dbpedia.org/page/Category:Early_telecommunications

Property	Value
rdf:type	skos:Concept
rdfs:label	Early telecommunications (en)
skos:broader	dbpedia:Category:Telecommunications_history
skos:prefLabel	Early telecommunications (en)
is skos:subject of	dbpedia:Beacon dbpedia:Bullroarer_%28music%29 dbpedia:Carrier_pigeon dbpedia:Claude_Chappe dbpedia:Drum_%28communication%29 dbpedia:Fiery_cross dbpedia:Heliograph dbpedia:Homing_pigeon dbpedia:Hydraulic_telegraph dbpedia:Photophone dbpedia:Polybius_square dbpedia:Relay_league dbpedia:Semaphore_line dbpedia:Signal_lamp dbpedia:Smoke_signal dbpedia:Substitute_flag dbpedia:Whistled_language dbpedia:Abraham_Niclas_Edelcrantz

Early telecommunications