Complex sentence: In 1538 the Livonian Order built a watermill on the left bank of the river just opposite the island, and in 1823 a cloth factory operated by a local merchant, Paul Momma, was opened on the right bank of the Narva River.
Split into simpler sentences: In 1538 the Livonian Order built a watermill on the left bank of the river just opposite the island. Since 1823 a cloth factory operated by a local merchant Paul Momma was opened on the right bank of the Narva River.