2. Strong clothes were needed for the workers.

3. A special strong material was bought from France.

4. Trousers were made from the material but weren't strong enough.

5. Pieces of metal were put in to make them stronger.

6. The jeans were taken all over the USA.

7. Jeans became cool and were worn by lots of teenagers.

8. Today millions of pairs of jeans are sold every day.