The Ancient Allagan Empire was a powerful civilization in the world of Final Fantasy XIV, known for its advanced technology and magic. It thrived thousands of years ago, dominating much of the land through its innovations and military strength. The empire's capital was located in Azys Lla, a floating island that showcased its architectural and magical prowess. The Allagans were known for their experiments with Primals and Eikons, which led to both great advancements and catastrophic consequences. Their quest for power ultimately resulted in their downfall, as they faced internal strife and external threats, leading to the empire's collapse and the loss of much of their knowledge and technology.