Other Fun Holidays around April 4
Walk to Work Day on first Friday of April encourages people to ditch the cars and bikes and walk to work in an effort to reduce pollution and to stay healthy.
World Party Day on April 3 is an unofficial holiday that encourages people to initiate social change by partying.
Read a Road Map Day on April 5 encourages people to pick up an actual paper map and read it.
April 5 is First Contact Day. It is a holiday celebrated by fans of the TV series, Star Trek.