9. SWEDEN: 1962: The sole television channel in Sweden was still black-and-white, but on April 1 it announced that viewers could easily convert to color. The station's technical expert, Kjell Stensson, said to pull a nylon stocking over the box. Supposedly, thousands of people actually tried.
8. UNITED STATES: 1992: National Public Radio announced that Richard Nixon, after living nearly two decades in disgraced retirement, was running again for president. His new campaign slogan was, according to NPR, "I didn't do anything wrong, and I won't do it again."
7. AUSTRALIA: 1975: A TV news program says Australia will convert to “metric time,” making 100 seconds to the minute, 100 minutes to the hour, and 20 hours to the day. Seconds would become millidays, minutes would become centidays, and hours would become decidays.