Today is Monday, 5/21/2018.

Photos below are taken in 2009.

Andrew, John and Roy at RiverFest 2009 in May

At Shanghai People's Square next to the Shanghai Museum on July 12, 2009
Roy, Zhiyong and Youyu at the Olympics Village in Beijing on July 17, 2009

Roy and Daddy at Ricketts Glen Park in Pennsylvania on July 25, 2009

Roy and his friends at NYSP (National Young Scholar Program)on August 6, 2009

The Dolphin kissed Roy in Cancun, Mexico, on August 15, 2009

Roy and Mom at Kulkulkan Pyramid in Chichen Itza, Mexico, on August 13, 2009
Youyu at the First Joint Meeting of KMS (Korean Mathematical Society) and AMS (American Mathematical Society) in Seoul Korea on December 17, 2009

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