Hokurikudō
When the Gokishichidō system was initially established after the Taika reforms, the region consisted of just two provinces: Wakasa and Koshi. During the reign of Emperor Temmu, Koshi was divided into three provinces: Echizen, Etchū and Echigo and Sado Island was added as a fifth province. Later, Noto and Kaga were carved out of Echizen.