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Buddhist monks gather for King Bhumibol Adulyadej's 84th birthday in Bangkok

David Longstreath / AP

Thai Buddhist monks gather Friday, Jan. 21, 2011, to offer prayers at Wat Phra Kaew in Bangkok for good health for Thailand's King Bhumibol Adulyadej and to honor his recent birthday. King Bhumibol Adulyadej is the longest reigning monarch in the world.

Chaiwat Subprasom/Reuters

Buddhist monks pray during a religious ceremony held to mark King Bhumibol Adulyadej's 84th birthday anniversary at the Wat Phra Kaew Temple of the Emerald Buddha (Wat Phra Si Ratana Satsadaram) in Bangkok Jan. 21. To the Thais, the 84th birthday is a significant milestone. The King's birthday will be celebrated throughout the year with various events.