Alexander Graham was born on March 3, 1847, in Edinburgh, . 

As a young boy, Alexander excelled at his . 

When he was 12 his mother began to lose her hearing. This gave Alexander a very real interest in acoustics – the science of .

As an adult, Alexander worked as a teacher in schools for deaf children. 

He his students to ‘hear’ and speak using vibrations, and came to discover that could be vibrated to send out sounds. 

This led to Alexander inventing the world’s ?rst telephone. On July 9, 1877, the Bell Telephone Company was founded. 

Alexander Bell on August 2, 1922. 

On the day of his burial, as a mark of honour, all telephone services in the USA stopped for one minute.