The serial property contains the architectural and archaeological remains of Sarnath, the sacred site where the Buddha is believed to have delivered his first sermon in the 6th century BCE and met his earliest disciples. Identified by the Buddha himself as one of the four principal Buddhist pilgrimage sites, Sarnath grew over many centuries through royal, monastic, and lay patronage, resulting in the construction of numerous stupas, temples, and viharas. After flourishing as a major Buddhist centre, Sarnath declined in the 12th century CE and fell into obscurity until its rediscovery in the 18th century. Today preserved as two archaeological zones, it remains both an important tourist destination and a revived pilgrimage site for Buddhists worldwide.