Behind today's door we want to get the grey cells going a little bit. We have prepared a little quiz to let you prove your knowledge about the Wild West. In the next few days, there will be more questions behind some of the doors!
Levi Strauss and the Blue Jeans
Jacob Davis and Levis Strauss received a joint patent on the so-called "studded trousers", which later became world-famous as Levis 501.
In which year was the patent granted for the studded trousers, today better known as "jeans"?