Literally from the same article you copied and pasted from:

The traditional Japanese method of fly-fishing is known as "Tenkara" (Japanese: テンカラ, literally: "from heaven").[4] Tenkara originated in the mountains of Japan as a way for professional fishermen and inn-keepers to harvest the local fish, Ayu, trout and char for selling and providing a meal to their guests. Primarily a small-stream fishing method that was preferred for being highly efficient, where the long rod allowed the fisherman to place the fly where the fish would be.