Taxila or Takshashila, in ancient India, modern-day Pakistan, was an early centre of learning, near present-day Islamabad in the city of Taxila. It is considered as one of the ancient universities of the world. According to scattered references which were only fixed a millennium later it may have dated back to at least the 5th century BC. Some scholars date Takshashila's existence back to the 6th century BC. The school consisted of several monasteries without large dormitories or lecture halls where the religious instruction was most likely still provided on an individualistic basis. Takshashila is described in some detail in later Jātaka tales, written in Sri Lanka around the 5th century AD.