May 30 is the 151st day of the year in the Gregorian calendar. If the ancient Mayans were correct, there are 205 days remaining until the end of time.
1848 William G. Young patents ice cream freezer
1889 Brassiere is invented and relentlessly improved upon over time
1933 Patent is granted on invisible glass installation
1959 World's 1st hovercraft (SR-N1) is tested at Cowes, England
1989 33-foot high "Goddess of Democracy" statue made out of butter is unveiled in Tiananmen Square by student demonstrators who have a wild party needing lots of lube planned for later that evening.
1996 John Tesh's final day as host of "Entertainment Tonight" (Admit it, you only watched that show because you thought/hoped he was gay)