In the subsequent Roman era, the use of water-power was diversified and different types of watermills were introduced, including all three main variants of the vertical water wheel as well as the horizontal water wheel.
The use of water-power was diversified. This was in the subsequent Roman era. Different types of watermills were introduced. This was including all three main variants of the vertical water wheel as well as the horizontal water wheel. This was in the subsequent Roman era.