Who wasthe first person to invent jeans?

From Wikipedia: In late 1870 Jacob Davis, a Reno, Nevada tailor, started making men's work pants with metal points of strain for greater strength. He wanted to patent the process but needed a business helper, so he turned to Levi Strauss, from whom he purchased some of his fabric. On May 20, 1873, Strauss and Davis received United States patent #139121 for using copper rivets to strengthen the pockets of denim work pants. Levi Strauss & Co. began manufacturing the famous Levi's brand of jeans.

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