In addition, after conquering Kyushu, Ishida Mitsunari, a samurai who later led the Western army in the Battle of Sekigahara, had Shimazu Yoshihisa, a territorial lord of Satsuma province, examine the amount of wood in Yakushima and around 1590.
•
During the Edo period (1603–1868), Tomari Jochiku, a Confucian monk of the Nichiren sect who had been born in Yakushima and served the Satsuma domain, saw the destitution of the islanders in Yakushima and submitted a plan to cut down yakusugi to the Shimazu clan daimyo.