The list of secular celebrations by season below are courtesy of the American Humanist Association’s Secular Seasons project. All links below will open a new window and take you to the Secular Seasons site where you will find more details about the event.
January
- New Year Reality Revival – January 1-31
- Thomas Paine Day – January 29
February
- Darwin Day – February 12
March
- International Women’s Day – March 8
- Pi Day – March 14
- Freedom of Information Day (US) – March 16
- Sunshine Week (US) – March 16 – 22
- Spring Equinox (Northern Hemisphere)
- Autumn Equinox (Southern Hemisphere)
April
- April Fool’s Day – April 1
- Yuri’s Night, or Cosmonaut’s Day – April 12
- Earth Day – April 22
May
- National Day of Reason (US) – First Thursday in May
June
- World Environment Day – June 5
- World Humanist Day – June 20-22 (solstice)
- Summer Solstice (Northern Hemisphere)
- Winter Solstice (Southern Hemisphere)
July
- Chevalier de la Barre – July 1
- Indivisible Day – July 4
August
- Ingersoll Day – August 11
September
- Autumn Equinox (Northern Hemisphere)
- Spring Equinox (Southern Hemisphere)
- Banned Book Week – September 23
October
- Freethought Month – October 1-31
- Freethought Day – October 12
November
- Church/State Separation Week ~ November 24
December
- International Human Rights Day – December 10
- Winter Solstice (Northern Hemisphere)
- Summer Solstice (Southern Hemisphere)
- Festivus – December 23
- HumanLight Celebration – Either weekend day immediately before Christmas.
Also check out…
Darwin Day Homepage
The International Darwin Day Foundation is a nonprofit 501(c)3 educational corporation, and its mission is to promote the public education about science and to encourage the celebration of science and humanity. It is managed by the American Humanist Association as an autonomous program.
National Day of Reason
The National Day of Reason website facilitates the commemoration of the National Day of Reason by individuals and organizations throughout the U.S.