The numbers are extraordinary. Charles M. Schulz, whose centenary falls next week, spent nearly 50 years of his life producing daily comic strips for Peanuts. Between 2 October 1950 and his death in February 2000, he drew a staggering 17,897 of them. He retired in December 1999 after a series of strokes and a cancer diagnosis; he died the day before his farewell strip was published.