International Zipper Day is indeed a real day that is celebrated on April 29th each year. It is a day to celebrate and appreciate the invention of the zipper, which has revolutionized the way we fasten and close clothing and accessories.
The zipper was invented in 1893 by a Swedish-American electrical engineer named Gideon Sundback. It was originally intended for use in boots and tobacco pouches, but it quickly became popular in clothing as well. Today, zippers are used in a wide range of products, from clothing and luggage to tents and sleeping bags.
On International Zipper Day, people often celebrate by sharing interesting facts and stories about the history of the zipper, or by wearing clothing or accessories with prominent zippers. Some people may also take the opportunity to repair or replace zippers on their clothing or other items, as a way of appreciating the convenience and utility that zippers provide.