A little Madness in the Spring

An ad appeared on May 1st, 1981 in the classifieds of the Arizona Daily Wildcat, a newspaper published by the University of Arizona. It was cryptic, and no one paid much attention to it. But another cryptic message appeared the next year, on May 1st. And on every May 1st since 1981 ---unless it fell on a weekend. It's become known as The May Day Mystery...