generate questions: The history of Indian Buddhism may be divided into five periods: Early Buddhism (occasionally called Pre-sectarian Buddhism), Nikaya Buddhism or Sectarian Buddhism: The period of the Early Buddhist schools, Early Mahayana Buddhism, Later Mahayana Buddhism, and Esoteric Buddhism (also called Vajrayana Buddhism).
The periods of Buddhisma in India is divided into how many periods? {sep_token} What is the first period of Buddhism called? {sep_token} What is another name for Nikaya buddhism? {sep_token} What is the last period of Buddhism? {sep_token} What is Esoteric Buddhism also called?