Nagarjuna about Second Century Ce

When Buddhism began to develop into distinct schools of thought its main division occurred between what became known as the Theravada (or Hinayana) and Mahayana schools. Further division then took place in both these schools. Theravada Buddhism divided into the Vaibhasika and Sautrantika schools. Mahayana Buddhism gave rise to the Madhyamika school and then, more than a century later, to the Yogacara. ¹