The invention of telephone
It was Thomas Watson who invented the bell.
Alexander Graham Bell founded The Bell Telephone Company in 1877 to build a nationwide
telephone system. By 1881, there were 132 700 Bell telephones in homes.
The telephone became one of the most popular methods of communication. People started writing
fewer letters and visited less often, so the main problem of 21 st century started already in 19th
century.
There are now three main types of phones or phone like devices: landline telephones, mobile
phones and VoIP phones which are known as an office phones.
As we can see now, the telephone has changed society a lot after its invention.