EntityQ870831· pop 5· linked from 9 articlesPrussian semaphore systemSign in to savetelegraphic communications system used between Berlin and the Rhine Province from 1832 to 1849Connectionswireless communicationEntityInformation AgeEntityelectrical telegraphEntityEhrenbreitstein FortressEntityFranceCountryBelgiumCountryDenmarkConceptSwedenCountryBerlinEntityEnglandEntityInternetEntityNapoleonPersonThomas EdisonEntitytelephoneEntityNikola TeslaEntityCologneEntityRhineEntitymass mediaEntityBremenEntityTim Berners-LeeEntityCategories1830s establishments in Prussia1832 establishments in the German Confederation1849 disestablishments in the German ConfederationCommunications in GermanyHistory of telecommunications in GermanyTelegraphy