May 20, 1873 marked an historic day: the birth of the blue jean. It was on that day that Levi Strauss and Jacob Davis obtained a U.S. patent on the process of putting rivets in men’s work pants for the very first time.

Levi Strauss, a Bavarian-born dry goods merchant, came to San Francisco in 1853 at the age of 24 to open a West Coast branch of his brothers’ New York wholesale dry goods business. Over the next 20 years, he built his business into a very successful operation, making a name for himself not only as a well-respected businessman, but also as a local philanthropist. One of Levi’s customers was a tailor named Jacob Davis.

WE MADE OUR FIRST JEANS OUT OF DENIM – THE TRADITIONAL FABRIC FOR MEN’S WORKWEAR. WITHIN A VERY SHORT TIME, THE JEAN WAS A BONA FIDE SUCCESS.

One day the wife of a local laborer asked Jacob to make a pair of pants for her husband that wouldn’t fall apart. Jacob tried to think of a way to strengthen his trousers and came up with the idea to put metal rivets at points of strain, like pocket corners and the base of the button fly. These riveted pants were an instant hit. Jacob quickly decided to take out a patent on the process, but needed a business partner to help get the project rolling. He immediately thought of Levi Strauss, from whom he had purchased the cloth to make his riveted pants.

The next time you see someone wearing a pair of Levi’s® jeans, remember that these pants are a direct descendant of that first pair made back in 1873. That year, two visionary immigrants — Levi Strauss and Jacob Davis — turned denim, thread and a little metal into what has become the most popular apparel on earth.