National Paperclip Day is observed worldwide every May 29, celebrating the paperclip, a small yet revolutionary tool for organizing papers and documents. The modern paperclip's origins date back to the 1860s, with the most common design, known as the Gem paperclip, popularized by the Gem Manufacturing Company in the 1870s. Although Norwegian inventor Johan Vaaler patented a different design in 1900, it was less practical and did not gain widespread use. The paperclip became a symbol of resistance during World War II when Norwegian patriots wore them as a sign of solidarity against German occupation. Today, people celebrate by using paperclips to organize documents, creating paperclip art, or watching the documentary "Paper Clips," which highlights a project where students collected six million paperclips to represent Holocaust victims. Participants often share their celebrations on social media using the hashtag #NationalPaperclipDay.