sentences:  Although the exact year in which "tōgyū" was started is not known, the second half of the Meiji period is when it began to get popular throughout Okinawa.In 1907, "tōgyū" became popular enough in the cities of Itoman, Gushikawa, Katsuren and Yonagusuku to start receiving coverage in local newspapers.During the Shōwa period, prior to the outbreak of World War II, "tōgyū" reached new heights of popularity.