: Researchers have used these terms to study occupational gaps in the territorial heartlands of groups like the Tsimshian (ca. 1,500–1,000 years ago) or the expansion of Numic populations (ca. 1,500 BP).
Stretching over 400 miles through the center of the state, the Central Valley is one of the most productive agricultural regions in the world.
Agriculture, viticulture, and veterinary sciences (notably at UC Davis)