Cochimí was once the language of the greater part Baja California, as attested by Jesuit documents of the 18th century. It seems to have become extinct around the beginning of the 20th century (Modern "Cochimi"-speakers are actually speakers of Kumiai.) There were two main dialects, northern and southern; the dividing line was approximately at the Misión San Ignacio Kadakaamán, in the north of present-day Baja California Sur.