Nihon Shoki, a book of classical Japanese history, gives the first formal record of incense in Japan when a log of agarwood, a fragrant wood used in incense burning, drifted ashore on Awaji Island during the Asuka period in 595 CE, and was presented to Prince Shōtoku and the Empress Suiko. Shōtoku knew of incense burning from Buddhism, which had been introduced into Japan around 538 CE from China through Korea.
Photo: Ranjyatai, a historical kyara wood dating to the 10th century CE, kept at the Shōsōin treasury in Nara