Complex sentence: The modern Bulgarian state was first established in 681 AD creating the First Bulgarian Empire, after the First Bulgarian Empire fell in 1018 the Second one took its place in 1185 was completely occupied in 1396 and fell in 1422.
Split into simpler sentences: The modern Bulgarian state was first established in 681 AD creating the First Bulgarian Empire, after the First Bulgarian Empire fell in 1018 the Second one took its place in 1185. The empire was completely occupied in 1396 and fell in 1422.