In A．D．９４６，the Russian Grand Duke Igor was killed by the Delieflians．In the second year，his wife Oligathought out a brilliant plan to avenge1） her husband．She invited those murderers to take a bath in a bathroom，locked the door and added fuel to the fire to increase the heat of the room，so that those inside were steamed to death．This historical record shows that there were steam baths in Russia as early as a thousand years ago．
