See also: Butlerwebs' April Holidays, Observances, Celebrity Birthdays, etc.
and for more info on upcoming movie premieres check out Coming Soon! or Zap2it; for TV premieres check out the futon critic; for dvd releases check out Coming Soon! or Amazon DVD; for music releases check out Amazon Music or CDJapan; for literature check out Amazon Books or Barnes & Noble Books; for games check out Amazon Computer & Video Games; for anime & manga check out Anime News Network; for conventions & festivals see tek's events links and Otakuphrenia's con links.

• Holidays/special occasions:
  • April Fools' Day

• Holidays/special occasions:
  • Buy a Friend a Book Week

• Holidays/special occasions:
  • Shoyru Day (2 Eating; Neopia)

• Holidays/special occasions:
  • First Contact Day, 2063 (UFP; fictional)

• Holidays/special occasions:
  • Kambutsu-e (Buddha's birthday) (Buddhist) / Hana Matsuri (flower festival; Japan)

• Holidays/special occasions:
  • Grey Day (14 Eating; Neopia)
• Historic events:
  • SS Titanic hits iceberg (sinks on April 15), 1912

• Holidays/special occasions
  • Income Tax Day (USA)

• Historic events:
  • Shot Heard 'Round the World (Battle of Lexington and Concord, start of the American Revolution, 1775)

• Holidays/special occasions:
  • Passover (Jewish; Nissan 15-22, A.M. 5768)

• Holidays/special occasions:
  • Administrative Professionals Week

• Holidays/special occasions:
  • Patriot's Day (USA; Monday)
• Sporting events:
  • Boston Marathon (Monday)

• Holidays/special occasions:
  • Earth Day (see also March 20)

• Holidays/special occasions:
  • St. George's Day
  • William Shakespeare's birthday, 1564 (unofficial)
  • Administrative Professionals Day (Wednesday)

• Holidays/special occasions:
  • Tribeca Film Festival

• Holidays/special occasions:
  • Take Our Daughters and Sons to Work (Thursday)

• Holidays/special occasions:
  • National Arbor Day (USA; Friday)

• Holidays/special occasions:
  • Showa Day (Japan)

• Holidays/special occasions:
  • Golden Week (Japan)

The Year
March - Front Door - May