Across the street from a wine lounge and a gourmet sausage spot on Glendale Boulevard in Atwater Village, a small red-and-white neon sign reads: "DAVE'S ACCORDION SCHOOL." Inside, black and tan cases ...

It's a well-known story — the one where European conquerors ravaged the New World with disease in the 15th century. That story repeated itself, in a very different way, in the early part of the 20th ...