Passage: Born in Fond du Lac, Wisconsin, Langacker received his Ph.D. from the University of Illinois at Urbana–Champaign in 1966. From 1966 until 2003, he was professor of linguistics at the University of California, San Diego. From 1997 until 1999 he also served as president of the International Cognitive Linguistics Association.

Question: What was the last year the Langacker taught at the University of California?
2003