Batman: Arkham Asylum is a 2009 action-adventure video game based on the DC Comics superhero. Written by veteran Batman comics writer Paul Dini (pictured), it was developed by Rocksteady Studios and published by Eidos Interactive in conjunction with Warner Bros. Interactive Entertainment for the PlayStation 3 and Xbox 360 video game consoles and Microsoft Windows. In the main storyline, Batman's archenemy, the Joker, instigates an elaborate plot to seize control of Arkham Asylum and trap Batman inside with many of his incarcerated foes. Kevin Conroy, Mark Hamill, and Arleen Sorkin reprised their roles as Batman, the Joker, and his sidekick Harley Quinn respectively. The game is presented in third-person perspective with a primary focus on Batman's combat and stealth abilities, detective skills, and gadgets that can be used in combat and exploration. The game received critical acclaim—particularly for its narrative—and won several awards, including Best Action Adventure game, Best Game, and Game of the Year from different media outlets. It held the Guinness World Record for "Most Critically Acclaimed Superhero Game Ever". Arkham Asylum‍ '​s success launched a series of Batman: Arkham sequels, beginning in October 2011 with Batman: Arkham City. ( Full article...)

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From Wikipedia's new and recently improved content:

• ... that Summer Evening on Skagen's Southern Beach (pictured) depicts the artist's wife and a painter on the beach during the blue hour?
• ... that the surface features of Venus include volcanoes, impact craters and aeolian landforms?
• ... that the film Arms and the Dudes is the true story of arms dealers David Packouz and Efraim Diveroli?
• ... that the spire of the Sacred Heart Church in Fiji has a neon light in the form of a cross, which is used by ships for navigation?
• ... that Siri Lindley retired as the number-one female triathlete after winning back-to-back Triathlon World Cup titles?
• ... that the linking of the Perunchani and Chittar Dams could allow another 15,000 acres (6,100 ha) to be served by the Kodiyar Irrigation System?
• ... that the tenor Llewellyn Cadwaladr created the role of Frederic in the first performance of The Pirates of Penzance in 1879?
• ... that the orange sea pen can't write?

• Former Egyptian President Hosni Mubarak (pictured) is sentenced to three years in prison for corruption.
• The World Health Organization declares Liberia Ebola-free.
• A prison break in Iraq results in forty prisoners escaping, as well as the deaths of fifty prisoners and twelve police officers.
• Scientists announce the discovery of Lokiarchaeota, a transitional form between Archaea and Eukaryotes.
• The UK's Conservative Party, led by David Cameron, wins a majority of seats in the House of Commons.
• Pakistan declares a national day of mourning after a helicopter crash kills eight people, including two ambassadors to Pakistan.
• A newly discovered species of prehistoric bird, Archaeornithura meemannae, becomes the oldest known member of Ornithuromorpha, a clade that contains all modern birds.
• Roughly 110 lost newspaper "letters" by Mark Twain are rediscovered.

Ongoing: Nepal earthquake – Saudi-led intervention in Yemen
Recent deaths: Kenan Evren

May 12: International Nurses Day

• 1510 – Zhu Zhifan, the Prince of Anhua (in modern Shaanxi, China), began an unsuccessful revolt against the reign of the Zhengde Emperor.
• 1865 – In the last major clash of arms of the American Civil War, the Union Army engaged the Confederates along the banks of the Rio Grande east of Brownsville, Texas.
• 1885 – The Provisional Government of Saskatchewan was decisively defeated at the Battle of Batoche, which led to the end of the North-West Rebellion three days later.
• 1955 – The Allied occupation of Austria came to an end, with the nation regaining its independence ten years after the end of World War II.
• 1975 – The Cambodian navy seized the American container ship SS Mayaguez (pictured) in recognized international waters, but claimed as territorial waters by Cambodia.

More anniversaries: May 11 – May 12 – May 13