Census Atlas of the United States. The red arrow shows migration to California between 1955 and 1960. The blue arrows show the reverse trend between 1995 and 2000.
Everyone who lives in Washington knows that a lot of Calfornians moved up here in the late 1990s (60,000+). But how many know that 40,000 Washingtonians headed to the Golden State in the late fifties? I sure didn't.