Penguin 1 on April 24, 2012
Penguin 2 on May 26, 2012
Penguin 3 on October 5, 2012
Penguin 4 (AKA Penguin 2.0) on May 22, 2013
Penguin 5 (AKA Penguin 2.1) on October 4, 2013
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