From: utzoo!decvax!harpo!npois!alice!rhm Newsgroups: net.math Title: puzzle Article-I.D.: alice.607 Posted: Tue Jun 1 18:13:36 1982 Received: Wed Jun 2 01:36:20 1982 I was informed recently by a swami of irreproachable accuracy that the world would end the next time the first day of a century falls on a Sunday. Can anyone help me find out when this will be? [The rules for the calendar currently in use are that century years are not leap years unless they are divisible by 400. I.e. 2000 is a leap year; 1900 was not. The first day of the 20th century was Tuesday, Jan 1, 1901 NOT Jan 1, 1900.]