The learning tradition at Taxila is older than most people realize, and older than its most famous association with Buddhism. Archaeological excavations at Sirkap by Sir John Marshall revealed numerous temples that he identified as Jain shrines, based on their architectural similarities with sites like Kankali Tila in Mathura. Jain literary traditions record that the site once housed more than 500 Jain temples and served as a seat of Jain learning. The Vedic philosopher Uddalaka Aruni is said to have traveled to Gandhara in the seventh century BCE, and the Buddhist Jataka tales -- dating to the fourth and third centuries BCE -- specify that both Aruni and his son Shvetaketu received their education at Taxila. Before it became the Buddhist center of scholarship that most histories emphasize, Taxila was already a meeting ground for Jain, Vedic, and Shramana intellectual traditions.

It was not a university in any modern sense. There were no dormitories, no lecture halls, no central administration. Each teacher operated independently from his own house, setting his own curriculum and accepting as many students as he wished. Specialization in a subject typically took eight years, though gifted students could finish sooner and slower ones took longer. The curriculum was staggering in its breadth: religious texts, linguistics, law, astronomy, mathematics, medicine, and even archery all found their place in Taxila's intellectual ecosystem. What made the system function was a shared belief that knowledge was sacred -- too sacred to sell. Wealthy merchants and royal families funded the schools, but teachers were expected to accept students regardless of their ability to pay. Those who could not afford tuition received free room and board in exchange for manual labor in the teacher's household. Paying students were taught during the day; non-paying students learned at night.

The grammarian Panini, possibly from Gandhara himself, codified the rules of classical Sanskrit at Taxila -- a system of linguistic analysis so sophisticated that modern computational linguists still study it. Chanakya, also known as Kautilya, taught political philosophy and statecraft before mentoring Chandragupta Maurya into founding the empire that would unite most of the subcontinent. Indrabhuti Gautama, the chief disciple of Mahavira, the founder of Jainism, is believed to have been associated with Taxila. By the third century CE, the Chinese Buddhist monk and traveler Yuan Chwang recorded that Kumaralata, founder of the Sautrantika school of Buddhism, was teaching at Taxila and attracting students from as far away as China. These were not cloistered academics. They were people whose ideas reshaped languages, toppled kingdoms, and founded religions.

The student body was no less remarkable. King Pasenadi of Kosala, a close friend of the Buddha, studied at Taxila. So did Jivaka, who became court physician at Rajagriha and the personal doctor of the Buddha himself. Charaka, called the "father of medicine" in the Ayurvedic tradition, studied and practiced at Taxila. Then there was Angulimala, whose story became one of Buddhism's most famous cautionary tales. His parents sent him to Taxila, where he quickly became the teacher's favorite student. But jealous classmates spread rumors that he had seduced the teacher's wife. The resulting betrayal sent Angulimala down a path of violence before the Buddha intervened and brought him back. According to Stephen Batchelor, the Buddha himself may have been influenced by the knowledge his closest followers acquired at Taxila -- a kind of intellectual gravity, pulling the subcontinent's most consequential minds toward a single place.

The role of Taxila as a center of knowledge strengthened under the Maurya Empire and the Indo-Greeks in the third and second centuries BCE, when Persian conquest, Greek philosophy, and Indian scholarship coexisted within the same city walls. But learning communities are fragile things. In the fifth century CE, Toramana and the Huna invaders conquered and destroyed the city, ending more than a millennium of continuous scholarship. The university left no buildings -- only the ideas it produced. Panini's grammar outlived every stone at Taxila. Chanakya's Arthashastra remains studied in political science courses worldwide. The educational model -- autonomous teachers, sacred knowledge, open admission -- influenced Nalanda, which arose in the mid-fifth century CE, and later Odantapuri and Vikramashila. In 1980, UNESCO designated the archaeological sites of Taxila a World Heritage Site, honoring not just the ruins but the idea they represent: that learning, given the right conditions, can reshape the world.