Daryle Williams is a historian who co-directs the online database Enslaved.org.

Beginning around 1990, the demographic landscape of the Los Angeles area changed dramatically through an infusion of immigrants from Mexico and Central America. But historian Jorge Leal says its impact on the neighborhoods of the Los Angeles area has never been charted in earnest. With his recently published research, Leal has taken a furtive step into documenting the Latinx community’s emerging L.A. footprint, using an unconventional source. If you want to know about the Latinx community’s presence in L.A. over the past 30 years, Leal says to follow the music posters.