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  • April Fool’s Day

    You gotta be kidding me ...For decades, April Fools Day has been a celebration of nonsense. Practical jokes and other foolish activities mark the morning hours of April 1st. But by one […]

  • Yuri’s Night, or Cosmonauts Day

    Yuri's Night, also called Cosmonauts Day, is a day in honor of Yuri Gagarin, who became the first human in space on April 12, 1961. Twenty years later on the […]

  • Ask An Atheist Day

    National Ask an Atheist Day (https://www.wheniscalendars.com/national-ask-an-atheist-day/) is a movible secular holiday occurring twice each year -- on the 3rd Thursday of April (anywhere from April 15 to April 21), and on […]

  • Earth Day

    Earth Day is a day to grow and diversify the environmental movement, and to mobilize our resources to promote a healthy, sustainable planet. Earth Day is the only Secular Holiday celebrated simultaneously […]

  • National Day of Reason

    The National Day of Reason (http://en.wikipedia.org/wiki/National_day_of_reason) (NDoR), endorsed first in 2003 and honored by U.S. secularists, occurs on the first Thursday of May. NDoR is a response and counterbalance to the National […]

  • Towel Day

    Towel Day (http://towelday.org/) is the annual celebration of the life and writings of Douglas Adams (1952-2001), humorist, humanist, conservationist, science fiction writer, and social critic. On that day, fans around the […]

  • Opposite Day

    Some say the proper date is May 26, some say April 30, some say March 27th -- can you ever be sure? When someone says "Today is Opposite Day," he might […]

  • Birthday of Science

    The Birthday of Science marks the day Thales of Miletus (in 585 BCE) correctly predicted a solar eclipse. A better choice might be the discovery of fire or the wheel, but we don't […]

  • Hug an Atheist Day

    In 2009, freethinker William Bermudez started Hug an Atheist Day (http://www.weirdholiday.com/hug-an-atheist-day/) (June 1st) to poke fun at other groups popping up at the time to encouraged hugging. He called for people to […]

  • World Environment Day

    The goal of World Environment Day is to stimulate worldwide awareness of environmental issues, and to generate action for conservation. The United Nations General Assembly established World Environment Day (http://worldenvironmentday.global/) in […]