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.

This month, journalist Emma McCarthy charts the rise and rise of the most noteworthy jean of all time, the Levi's 501. Close ...

School yourself on the history, study the terminology and shop every fit from the most storied brand in blue jeans.