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Britain's incoming London Mayor Sadiq Khan (2R), gestures during his swearing-in ceremony at Southwark Cathedral in cental London on May 7, 2016.
London's new mayor Sadiq Khan thanked voters for choosing "unity over division" as he was elected Saturday, becoming the first Muslim leader of a major Western capital. / AFP / POOL / Yui Mok        (Photo credit should read YUI MOK/AFP/Getty Images) Yui Mok/AFP/Getty Images
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