In August of 1895, a ship called the SS Coptic approached the coast of Northern California. On that boat was a passenger from San Francisco, a young man named Wong Kim Ark. He was returning home after visiting his wife and child in China, and he'd taken similar trips before. But when the ship docked, officials told him he couldn't get off. The customs agent barred him according to the Chinese Exclusion Act, which denied citizenship to Chinese immigrants. Though Wong Kim Ark had been born in the U.S. and lived his whole life here, the agent said he was not a citizen. U.S. history, politics, and culture is deeply linked to East Asian countries like China, South Korea, and Taiwan. This month, we're telling some of those stories, in our series "Superpower." Today, the story of Wong Kim Ark, whose epic fight to be recognized as a citizen in his own country led to a Supreme Court decision affirming birthright citizenship for all.