Which thistle-like vegetable, grown mainly in California, has an edible heart?

On what date did the 20th century technically begin? In 1963, a long dispute between California and Arizona over water rights to which river was settled by the Supreme Cour… Which "pet" did California advertising man Gary Dahl create in 1975? The California Institute of Technology is located in which city? Which California stadium was the main venue of both the 1932 and 1984 Summer Olympics? California's 2001 energy crisis was blamed on a 1996 state law mandating what for the electricity industry? California's largest almond growers' cooperative sells its nuts under which gem-themed brand name? Which was California's first state prison, built with convict labor in 1852?