| Euro Day | |  |
| National First Foot Day | |  |
| Ring A Bell Day | |  |
| Humiliation Day | |  |
| Tom Thumb Day | |  |
| National Take Down The Christmas Tree Day | |  |
| Word Nerd Day | |  |
| Heritage Treasures Day | |  |
| National Youth Day in India | |  |
| Korean American Day | |  |
| National Appreciate A Dragon Day | |  |
| National Religious Freedom Day | |  |
| Museum Selfie Day | |  |
| Toad Hollow Day Of Encouragement | |  |
| International Day of Commemoration in Memory of the Victims of the Holocaust | |  |
| Black History Month | |  |
| World Hijab Day | |  |
| World Interfaith Harmony Week | |  |
| Women's History Month | |  |
| Fun Facts About Names Day | |  |
| St. Urho’s Day | |  |
| French Language Day | |  |
| International Francophonie Day | |  |
| World Poetry Day | |  |
| Eiffel Tower Day | |  |
| National Atheist Day | |  |
| International Romani Day | |  |
| National Winston Churchill Day | |  |
| National Thomas Jefferson Day | |  |
| National Pan American Day | |  |
| National Titanic Remembrance Day | |  |
| National Ellis Island Family History Day | |  |
| International Day for Monuments and Sites | |  |
| National Oklahoma City Bombing Commemoration Day | |  |
| Chinese Language Day | |  |
| National Yellow Bat Day | |  |
| English Language Day | |  |
| Gathering Of Nations | |  |
| Spanish Language Day | |  |
| International Delegate’s Day | |  |
| National East Meets West Day | |  |
| National Day of Reason | |  |
| Leprechaun Day | |  |
| International Museum Day | |  |
| World Day for Cultural Diversity for Dialogue and Development | |  |
| Russian Language Day | |  |
| National Boone Day | |  |
| International Day Of The Celebration Of The Solstice | |  |
| National Paul Bunyan Day | |  |
| International Day Of Parliamentarism | |  |
| National Amelia Earhart Day | |  |
| Norfolk Day | |  |
| National Dollar Day | |  |
| International Day of the World's Indigenous People | |  |
| National Spirit of ’45 Day | |  |
| Ingersoll Day | |  |
| National Airborne Day | |  |
| International Day for the Remembrance of the Slave Trade and its Abolition | |  |
| Pony Express Day | |  |
| Uncle Sam Day | |  |
| Mayflower Day | |  |
| European Heritage Days | |  |
| Chainmail Day | |  |
| Mabon | |  |
| Schwenkfelder Thanksgiving | |  |
| Ancestor Appreciation Day | |  |
| Confucius Day | |  |
| Rumi Day | |  |
| Black History Month | |  |
| National German-American Day | |  |
| General Pulaski Memorial Day | |  |
| Black Poetry Day | |  |
| National Immigrants Day | |  |
| Girl Scout Founder’s Day | |  |
| World Freedom Day | |  |
| International Day for Tolerance | |  |
| Occult Day | |  |
| D.B. Cooper Day | |  |
| National Day of Mourning | |  |
| International Day of Solidarity with the Palestinian People | |  |
| Santa's List Day | |  |
| National Repeal Day | |  |
| International Day Of Neutrality | |  |
| Saturnalia December | |  |
| Arabic Language Day | |  |
| Mudd Day | |  |
| Yule | |  |
| Forefathers Day | |  |
| National Roots Day | |  |
| Pledge of Allegiance Day | |  |