Echizen Washi

I have the same textbooks with the ones my students use at school now. Their history book explains kozo, mulberry, as a materials for papermaking and weaving textile. It says the peals for papermaking and leaves for sericulture. 

I've been always interested in this fact. But mulberry has many kinds, so most people told me that the kinds should have been different for papermaking and for silk worms. I remember when I visited a papermaking village in Jingxian, China, I saw many mulberry fields. But they told me they were for silk worms.

I've been wondering why papermaking and textile industries are always located in the same area. and since when .