Original sentence: Recently, author Gavin Menzies recycled the rejected hypothesis when he wrote in his 2002 book 1421: The Year China Discovered the World that the Otomi people speak Chinese, and took this as evidence for the Chinese having visited America before Columbus
Edited sentence: Recently though, author Gavin Menzies recycled the rejected notion of Otomi being related to Chinese, when he wrote in his 2002 book 1421: The Year China Discovered the World that the Otomi people speak Chinese, and took this as evidence for the Chinese having visited America before Columbus