Thomas A. Edison created the light bulb. The light bulb helped everyone greatly. It gave people light to see what they were doing. If factories had lights then people could work longer and jobs could higher more people. Edison also invented the phonograph. It was an early record player.
Alexander Graham Bell invented the telephone. The telephone helped people communicate with one another. It saved a lot of time because if you wanted to talk to someone in another state all you have to do is pick up the phone and call. Instead of writing a letter. He also invented the company AT & T, which is still around today.
Andrew Carnegie was the poster-child of a rags to riches story. Carnegie was born in Scotland and came to America in 1848. Carnegie decided to invest his money in steel instead of iron. He made millions by doing this. When Carnegie died he gave 350 million dollars to charity.
So that is how this men changed the world for the better. Every invention that these men are famous for are still around today. Like the light bulb and the telephone. They made lives easier for everybody.
