The Maurya Empire was inherited by Bindusara's son, Ashoka. Ashoka initially sought to expand his kingdom but in the aftermath of the carnage caused during the invasion of Kalinga, he renounced bloodshed and pursued a policy of non-violence or ahimsa after converting to Buddhism. Following the conquest of Kalinga, Ashoka ended the military expansion of the empire, and led the empire through more than 40 years of relative peace, harmony and prosperity. Ashoka's response to the Kalinga War is recorded in the Edicts of Ashoka, one of the oldest preserved historical documents of the Indian subcontinent.