Discover a bit of history and other factoids with all of the National Days for November 1, 2025.
| National Day | Factoid |
| AUTISTICS SPEAKING DAY | It was founded in 2010 by the Autistic Self Advocacy Network (ASAN) to ensure autistic people have a platform to speak for themselves. |
| NATIONAL BIOLOGIC COORDINATORS DAY | This day was established recently in 2021 by Janssen® to honor the coordinators who play a vital role in patient treatment. |
| NATIONAL CINNAMON DAY | The celebration of this spice was officially founded in 2019 by McCormick & Co., Inc. |
| NATIONAL BISON DAY | Observed on the first Saturday of November (Nov 1, 2025), the American Bison is the largest mammal in North America and was designated the U.S. national mammal in 2016. |
| NATIONAL CALZONE DAY | It was founded in 2016 by Minsky’s Pizza to celebrate the savory Italian turnover, which literally translates to “trouser leg” or “stocking” in Italian. |
| NATIONAL BRUSH DAY | Observed the day after Halloween, this day was created to remind parents and children to brush their teeth for two minutes, twice a day to prevent dental decay. |
| NATIONAL DEEP FRIED CLAMS DAY | Deep-fried clams, a New England staple, were first served in 1916 at Woodman’s in Essex, Massachusetts. |
| NATIONAL COOK FOR YOUR PETS DAY | The day encourages pet owners to make a meal for their companion, allowing them to monitor and ensure the quality and nutrition of the food. |
| NATIONAL FAMILY LITERACY DAY | It was first celebrated in 1994 after Congress issued a Joint Resolution to highlight the importance of literacy programs for families across the U.S. |
| NATIONAL AUTHOR’S DAY | The idea for the day originated in 1928 with Nellie Verne Burt McPherson, who wanted a way to honor American authors. |
| NATIONAL VINEGAR DAY | Of the many varieties, distilled vinegar is considered the most versatile, commonly used for cleaning and pickling in addition to cooking. |
| NATIONAL PLAY OUTSIDE DAY | Observed on the first Saturday of every month (Nov 1, 2025), the day was founded in 2011 to encourage lifelong habits of physical activity and enjoying the fresh air. |