Yezo

Yezo or Yesso, the northernmost of the four large islands of Japan, is about as large as Ireland; is traversed from N. to S. by rugged mountains, several of them active volcanoes; is rich in minerals, and particularly coal; its rivers swarm with salmon, but the climate is severe, and it is only partially settled.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Yezidees * Yggdrasil
Yenikale
Yenisei
Yeniseisk
Yeomanry
Yeomen
Yeomen of the Guard
Yeovil
Yetholm
Yezd
Yezidees
Yezo
Yggdrasil
Yiddish
Ymir
Yniol
Yoga
Yogin
Yokohama
Yokuba
Yonge, Charlotte Mary
Yoni