The Hideyoshi's dispatch of troops to Korea ended in failure, and in the Edo period when the Tokugawa Shogun family ruled Japan, the term 'Tenka' was used in only referring to the Japanese archipelago.
秀吉の朝鮮出兵は失敗に終わり、徳川将軍家が支配する江戸時代になると、「天下」は日本列島に限る意味で用いられた。