How did Levi Strauss become famous?

Making the first jean!
Levi Strauss became famous and wealthy because he saw a need and was able to meet that need in a practical way. During California's gold rush, Strauss recognized a growing need of sturdy work pants for the miners. Strauss, who had a dry goods store with David Stern, happened to have some blue demin cloth on hand, designed and sold the first pair of "Levi's" in 1850. By 1870, Strauss was a millionaire and Levi's became a household name.