The Gupta period (4th to 6th centuries) saw a flowering of scholarship, the emergence of the classical schools of Hindu philosophy, and of classical Sanskrit literature in general on topics ranging from medicine, veterinary science, mathematics, to astrology and astronomy and astrophysics. The famous Aryabhata and Varahamihira belong to this age. The Gupta established a strong central government which also allowed a degree of local control. Gupta society was ordered in accordance with Hindu beliefs. This included a strict caste system, or class system. The peace and prosperity created under Gupta leadership enabled the pursuit of scientific and artistic endeavors.