Levi Strauss was a German immigrant who founded Levi Strauss & Co., the first company to manufacture blue jeans. He established the business in San Francisco in 1853, originally selling clothing and other dry goods. In the 1870s, Strauss partnered with Jacob Davis to create blue jeans reinforced with copper rivets, resulting in the first modern blue jean. Levi's jeans became iconic American clothing, known for quality and durability. The company expanded its product lines over time and established global brand recognition through marketing campaigns.