“... The permanence of Californian culture ... is of far more than local interest. It is a fact of significance in the history of civilization.”
Successive intrusions of different peoples and the isolation of the resultant developing Indian tribes, century after century, gave rise to many diverse languages. Although some were mere dialects, there were about 750 different North American Indian languages.
Dr. A. L. Kroeber’s map shows all tribes within the present political boundaries of the State of California. The tribes of the extreme northwest corner and those of the southern tip of the state are not typical of what we generally think of as “California Indians”.
Although it may not be scientifically sound to do so, it is often convenient to refer to the Indian tribes of the California region collectively. The term “Digger Indians” is frequently used for this purpose with a somewhat disparaging connotation. The origin of this name is traceable to white traders and pioneers who observed that local Indians dug extensively for a number of food items, hence the name Digger was applied. However, this is a poor name as digging was but one of many methods the Indians used to secure food. Besides, digging was by no means peculiar to Indians of the California area. It is best, therefore, simply to use the term California Indians, if one wishes to refer to this group of tribes as a whole.
In connection with the nickname Digger Indian, it is of interest to note that the California tribes used the conspicuous pine of the foothills, _Pinus sabiniana_, as a source of edible pine nuts and for other purposes too. Because the so called Digger Indians used these trees so much, the pioneers named the conifers Digger Pines, a name recognized today as the proper common name of that tree.
California tribes are usually not considered high culturally among Indians generally, yet Yurok, Pomo, and Chumash are equal to any tribe in North America in wood, bone, steatite, obsidian, feather, and skin work, while local tribes of the Lassen area made basketry of a variety and quality unsurpassed elsewhere.
Although there were local differences in food habits, the California Indians as a group had a highly diversified diet in contrast to the so-called one-food tribes in surrounding areas. Of course it is an over-simplification to speak of one-food tribes, for all ate quite a variety of foods. Yet, it is true that several cultures had been built upon the great abundance and importance of one particular food item as compared to all other foods eaten. North of California, Indians built their culture largely upon the salmon. To the east were tribes which depended upon the bison for most of their needs, and southeast of California the Southwest Indians built their culture around the all important maize or native corn. In any of these regional groups, if the main food item failed, disaster struck the tribes. In contrast, the Californians, with diversified eating habits, had four major food sources: fish, game, roots, and seeds or nuts. Each was important and the failure of any one caused hardship, but by no means the serious disaster which befell the more specialized groups of Indians if their main food supply item failed. If any one item of the California Indian diet were to be selected as the most important and universal food, one of the nuts, the acorn would have to be named.