"La Eme," also known as the Mexican Mafia, is a highly organized prison gang that originated in California during the late 1950s. It was formed by Mexican-American inmates to provide protection and support within the prison system. Over time, La Eme expanded its influence beyond prisons, engaging in various criminal activities, including drug trafficking and extortion. The gang's symbol is the letter "M," which stands for "Mexican" and is often associated with the number 13, representing the letter "M" in the alphabet. La Eme has a strict code of conduct and hierarchy, with members expected to show loyalty and respect to the organization and its leaders.