BC 100,000
People communicate with each other by shorting
AD 1,000
People communicate with each other by signal fire
AD 1,200
People communicate with each other by post
Middle of the 19th Century
People communicate with each other by telegraph
Late of the 19th Century
People communicate with each other by telephone & pager
The 21th Century
People communicate with each other by mobile device
The future
People communicate with each other by inspiration
Mobile Communication - We could develop more
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