Great ideas competition

The bicycle was invented in the fourteen century.

When the bicycle was invented it became more difficult for people to change where they lived or worked.

Today's hairdryers are very different from the first hairdryers.

People thought that the Sun was the centre of the universe.

The Copernicus wrote his theory that the Sun goes around the Earth.

Who sold its first personal computer?

Thanks to the ... people began to wash their hair more often.

People didn't travel more than fifty kilometres before the invention of the bicycle.

There wasn't an explosion of new hairstyles in the 1920s.

The author of the theory that the Earth goes around the Sun:

Millions of people bought their first computers in the 1990s.