Commentary: California’s never-ending secessionist movement — and its grim ties to slavery in the state

Here we go again. Another county — this time San Bernardino — is threatening to break away from California to form its own state. Petitions and plots of this sort pop up almost annually but then invariably fizzle. Yet however quixotic state division may seem, it has a much deeper, grimmer history than most Californians recognize.

A real estate developer and two mayors in the Inland Empire are the latest would-be secessionists. San Bernardino County, they argue, should be a state unto itself. With 2.2 million residents, it would be more populous than 15 other