Complex sentence: Thus, during the 17th--18th centuries, in Vetka and surrounding suburbs with neighbouring settlements, there was proliferation of monasteries and priories and became known as the "centre of Raskolniks" with distinct assimilation and preservation of the "traditions of the Moscow Russia".
Split into simpler sentences: Thus, during the 17th--18th centuries, in Vetka and surrounding suburbs with neighbouring settlements, there was a proliferation of monasteries and priories. It became known as the "centre of Raskolniks" with distinct assimilation and preservation of the "traditions of the Moscow Russia".