Complex sentence: Aware of their suffering, on May 31,552 A.D., the goddess Benzaiten caused the island of Enoshima to arise from the bottom of the bay to serve as her abode and descended onto the island amidst a series of spectacular terrestrial and aerial phenomena.
Split into simpler sentences: Aware of their suffering, on May 31,552 A.D., the goddess Benzaiten caused the island of Enoshima to arise from the bottom of the bay to serve as her abode. She then descended onto the island amidst a series of spectacular terrestrial and aerial phenomena.