Bell was a poor student in school but had splendid skills for fixing problems.

He had no college education, but his active mind allowed him to realize his dream and invent a machine capable of imitating human speech.

At the age of 25, Alexander Graham Bell founded a school in Boston, Massachusetts, and taught deaf children to speak.

He later became a professor at  Boston University's School of Oratory.

He was a gifted inventor who built a machine that separated the husk from the grain.

Bell was fascinated by the idea of sound recording and playback and began experimenting with the technology.

Alexander Graham Bell's most famous invention is the telephone.

This invention  changed the way people communicate with each other.

Now people can make and receive phone calls all over the world.

The telephone has also changed the way  deaf people educate themselves.