In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

The 5th century and what was when a certain kind of Buddhism flourished?, Context: Mahayana Buddhism flourished in India from the 5th century CE onwards, during the dynasty of the Guptas. Mahayana centres of learning were established, the most important one being the Nalanda University in north-eastern India.
onwards