The type of communication that was used in 1860 was verbal communication. People would talk to each other and send letters.
Feather. If you were lucky.
if you're living in 1860, yes
what are the type on audio communication
pakyu
parabolic
Morse code.
letters
Electromagnetic energy
Wave propagation
pragmatic functions are type of communication signals which are used for certain purpose
Participatory communication.
what type of communication they used