The first true writing system was invented by the Sumerians over 5,000 years ago.They used pictures called pictograms to stand for objects, ideas and sounds.Today, the written or printed word is central to human communication.

Writing and Printing

Medicine

Buildings

Food and Agriculture

At Home

Clothes and Fabrics

Useful Materials

Toys and Games

Energy

Calculations

Computers

Communication

On Film

Travel on Land

On the Sea

By Air

Into Space

Timeline

Index