Have you ever thought about revolutionary inventions ?
There are some revolutionary inventions, but I think that one invention that changed people's life is the cellphone.
It's the greatest thing that has ever been invented !
The cellphone's best benefit is that you can talk on it and walk anywhere you want at the same time .
the cellphon was invented in 1973 by Martin Cooper.
In the beginning, the cellphone was a bit lame. People used it only for communicating with each other.
Nowadays, the cellphone has so many things like games, SMS messages,
camera, internet and even television !
In my opinion, it is the best thing that has ever been invented !
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