Tap a day for its story, fun facts and easy ways to join in.
Oct 18
National Chocolate Cupcake Day on October 18 celebrates the frosted, single-serving treat. Learn cupcake history and decorating tips.
Oct 19
Evaluate Your Life Day on October 19 encourages reflection on goals and priorities. Learn its origin and simple ways to review your…
Oct 20
International Sloth Day on October 20 celebrates the slow-moving mammals of Central and South America. Learn sloth facts and how to protect…
Oct 21
Back to the Future Day on October 21 marks the 'future' date visited in a 1989 sci-fi sequel. Learn how fans celebrate…
Oct 22
National Color Day on October 22 celebrates the colors that brighten our world. Learn the science of color, from Isaac Newton to…
Oct 23
Mole Day on October 23 celebrates Avogadro's number, a key unit in chemistry. Learn why it's celebrated from 6:02 a.m. to 6:02…
Oct 24
United Nations Day on October 24 marks the founding of the UN in 1945. Learn the UN's history, its purpose and how…
Oct 25
International Artist Day on October 25 honors artists and their contributions to culture. Learn its history and ways to support artists.
Apr 22
Earth Day on April 22 is a global day of environmental action. Learn how the first Earth Day in 1970 sparked a…
Jun 19
Juneteenth on June 19 commemorates the end of slavery in the United States. Learn its history, from Galveston in 1865 to a…
Nov 11
Veterans Day on November 11 honors everyone who has served in the U.S. armed forces. Learn its Armistice Day origins and meaningful…
Oct 31
Halloween on October 31 is a night of costumes, trick-or-treating and spooky fun. Learn its history, from Samhain to modern celebrations.
May 5
Cinco de Mayo on May 5 commemorates Mexico's victory at the Battle of Puebla. Learn its real history and respectful ways to…
Feb 2
Groundhog Day on February 2 asks a famous groundhog whether spring is coming early. Learn the tradition's European roots and Punxsutawney Phil's…
Jul 4
Independence Day on July 4 celebrates the adoption of the Declaration of Independence in 1776. Learn its history, traditions and surprising facts.
Feb 14
Valentine's Day on February 14 celebrates love and affection. Learn the history behind St. Valentine, Valentine cards and the day's traditions.
Welcome to your guide to the national days, holidays and observances celebrated in the United States and around the world. Every day of the year has something worth celebrating, from food holidays and awareness days to historic anniversaries.
Use the calendar to find out what day it is today, plan ahead for the month, or discover the stories behind your favourite observances. Every page explains where a day came from, why it matters and simple ways to join in.
Tell us about it and our editors will check it out.