Complex sentence: Ancient Gabala was created as a city in the late 4th-early 3rd century B.C. and survived up to the mid 18th century A.C. A great many of changes occurred in the life of the city through the period of existence.
Split into simpler sentences: Ancient Gabala was founded as a city in the late 4th-early 3rd century BC and survived up to the mid 18th century AD. Many changes occurred in the life of the city through the period of existence.