In a presentation held on November 18th, 2010 at the Meiji Dori, Shinjuku, Tokyo, Japan McDonald's location (マクドナルド 明治通り新宿), the Guinness Book of World Records awarded the 2010 McDonald's Pokémon calendar a certificate for "the most calendars sold in one year". Pikachu and Ronald McDonald were in attendance to receive the award. The calendar has been released yearly and features original pictures based on the latest Pocket Monsters animated series. The 2011 calendar is currently for sale for 300 yen.

Full certificate description: "The most calendars sold in one year is 1,476,442 and was achieved by McDonald's Japan in Japan on 5 November 2010."


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Source: http://woman.excite.co.jp/topics/culture/rid_24696/