MyBirthday.Ninja

Tip: Click the free calendar ninja poster above to save the high quality version. Everyday a new design will be generated for you. Collect all 16 ninja poses.

The next time you can reuse this calendar will be on year 2026. Both calendars will be exactly the same! This is assuming you are not interested in the dates for Easter and other irregular holidays that are based on a solar cycle.

April 4 (4/4), June 6 (6/6), August 8 (8/8), October 10 (10/10), December 12 (12/12), and the last day of February always fall on the same day of the week in any given year. This is called the ‘Doomsday rule’. Check these dates using the full 12-month calendar below to verify.

1981 Calendar

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•  February 5, 1981 – New Year’s Day in Chinese calendar. Start of the year of the Metal Rooster in Chinese astrology.
•  February 6, 1981 – The National Resistance Army of Uganda launches an attack on a Ugandan Army installation in the central Mubende District to begin the Ugandan Bush War.
•  April 4, 1981 – The Islamic Republic of Iran Air Force mounts an attack on H-3 Airbase and destroys about 50 Iraqi aircraft.
•  July 1, 1981 – The Wonderland murders occur in the early morning hours in Los Angeles, allegedly masterminded by businessman and drug dealer Eddie Nash.
•  July 9, 1981 – Donkey Kong, a video game created by Nintendo, is released. The game marks the debut of Nintendo’s future mascot, Mario.
•  July 17, 1981 – A structural failure leads to the collapse of a walkway at the Hyatt Regency in Kansas City, Missouri killing 114 people and injuring more than 200.
•  August 7, 1981 – The Washington Star ceases all operations after 128 years of publication.
•  August 10, 1981 – Murder of Adam Walsh: The head of John Walsh’s son is found. This inspires the creation of the television series America’s Most Wanted.
•  November 12, 1981 – Space Shuttle program: Mission STS-2, utilizing the Space Shuttle Columbia, marks the first time a manned spacecraft is launched into space twice.
•  December 17, 1981 – American Brigadier General James L. Dozier is abducted by the Red Brigades in Verona, Italy.

•  January 12, 1981 – Dan Klecko, American football player
•  April 7, 1981 – Vanessa Olivarez, American singer-songwriter, and actress
•  May 28, 1981 – Aaron Schock, American lawyer and politician
•  June 25, 1981 – Simon Ammann, Swiss ski jumper
•  July 9, 1981 – Michael Norgrove, Zambian-English boxer (d. 2013)
•  July 25, 1981 – Conor Casey, American soccer player
•  August 5, 1981 – Carl Crawford, American baseball player
•  August 11, 1981 – Fiona Sit, Hong Kong singer and actress
•  August 15, 1981 – Song Ji-hyo, South Korean model and actress
•  October 29, 1981 – Amanda Beard, American swimmer