Beginning September 13, 1991, Levi’s began showing television ads promoting their 501 jeans (with the button fly) nationwide and as fate would have it, one of the commercials featured a 23-year ...

Close your eyes and think of jeans. You're imagining Levi's 501s, right? They are the OG of blue denim—the first pair ever made and the literal blueprint of every other pair in existence since.

In the beginning, there was one: the 501. Over the past century and a half, Levi’s jeans have become a favorite of miners, laborers, rock stars, fashion designers and practically everyone in-between.