Did You Ever Let A Movie Make You Scared To Go Swim? Welcome to April 29, 2023 on the National Day Calendar. Today we celebrate staying cool under water and cool inventions. Anna: Do you remember the summer that the movie Jaws premiered? On National Pool Opening Day, be grateful that Steven Spielberg is releasing any new blockbusters! Zippers are something that we use almost daily but probably don’t give much thought. This essential but overlooked part of our lives was invented in 1851 by Elias Howe, the same man who invented the sewing machine. But the idea didn’t become popular until 1917 when Gideon Sundback reworked the design. At first, the zipper was used only for boots and purses, but then it caught on with the fashion industry and the rest is history. On National Zipper Day, celebrate by wearing something you haven’t worn in a while. But no buttons, please. Zip-up clothes only.
