Paper Bag Day is observed worldwide every year on July 12, encouraging the use of paper bags as a sustainable alternative to plastic. The holiday was established to promote the environmental benefits of paper bags, which are reusable, biodegradable, and recyclable when made from sustainably sourced cellulose fiber. The origin of Paper Bag Day can be traced back to July 12, 1859, when William Goodale received a patent for an improvement in paper bag manufacturing machines, contributing to the popularization of paper bags. Participants often celebrate by switching from plastic to paper bags and promoting the holiday on social media using the hashtag #PaperBagDay. The day serves as a reminder of the negative environmental impact of single-use plastic bags and highlights the versatility of paper bags in various applications, including gift packaging and arts and crafts.