Bodh Gaya in the context of "Gelug"

Siddhartha Gautama, most commonly referred to as the Buddha (lit. 'the awakened one'), was a wandering ascetic and religious teacher who lived in South Asia during the 6th or 5th century BCE and founded Buddhism. According to Buddhist legends, he was born in Lumbini, in what is now Nepal, to royal parents of the Shakya clan, but renounced his home life to live as a wandering ascetic. After leading a life of mendicancy, asceticism, and meditation, he attained nirvana at Bodh Gaya in what is now India. The Buddha then wandered through the lower Indo-Gangetic Plain, teaching and building a monastic order (sangha). Buddhist tradition holds he died in Kushinagar and reached parinirvana ("final release from conditioned existence").

According to Buddhist tradition, the Buddha taught a Middle Way between sensual indulgence and severe asceticism, leading to freedom from ignorance, craving, rebirth, and suffering. His core teachings are summarised in the Four Noble Truths and the Noble Eightfold Path, a training of the mind that includes ethical training and kindness toward others, and meditative practices such as sense restraint, mindfulness, dhyana (meditation proper). Another key element of his teachings are the concepts of the five skandhas and dependent origination, describing how all dharmas (both mental states and concrete 'things') come into being, and cease to be, depending on other dharmas, lacking an existence on their own (svabhava).

Patna (Hindi: Paṭanā, pronounced [ˈpəʈnaː] ), historically known as Pāṭaliputra, is the capital and largest city of the Indian state of Bihar. According to the United Nations, as of 2018, Patna had a population of 2.35 million, making it the 19th largest city in India. Covering 250 square kilometres (97 sq mi) and over 2.5 million people, its urban agglomeration is the 18th largest in India. Patna also serves as the seat of Patna High Court. The Buddhist, Hindu and Jain pilgrimage centres of Vaishali, Rajgir, Nalanda, Bodh Gaya and Pawapuri are nearby and Patna City is a sacred city for Sikhs as the tenth Sikh Guru, Guru Gobind Singh was born here. The modern city of Patna is mainly on the southern bank of the river Ganges. The city also straddles the rivers Son, Gandak and Punpun. The city is approximately 35 kilometres (22 mi) in length and 16 to 18 kilometres (9.9 to 11.2 mi) wide.

One of the oldest continuously inhabited places in the world, Patna was founded in 490 BCE by the king of Magadha. Ancient Patna, known as Pataliputra, was the capital of the Magadha Empire throughout the Haryanka, Nanda, Mauryan, Shunga, Gupta, and Pala dynasties. Pataliputra was a seat of learning and fine arts. It was home to many astronomers and scholars including Aryabhata, Vātsyāyana and Chanakya. During the Maurya period (around 300 BCE) its population was about 400,000. Patna served as the seat of power, and political and cultural centre of the Indian subcontinent during the Maurya and Gupta empires. With the fall of the Gupta Empire, Patna lost its glory. The British revived it again in the 17th century as a centre of international trade. Following the partition of Bengal presidency in 1912, Patna became the capital of Bihar and Orissa Province.

Sarnath (also known as Deer Park, Sarangnath, Isipatana Deer Park, Rishipattana, Migadaya, or Mrigadava) is a town northeast of Varanasi, in Uttar Pradesh, India. As the Lalitavistara sutra states, the Gautama Buddha chose "Deer Park by the Hill of the Fallen Sages, outside of Varanasi" for his first teaching after he attained enlightenment in Bodh Gaya. The teaching is entitled Dhammacakkappavattana sutra. Sarnath is one of the eight most important pilgrimage sites for Buddhists, and has been nominated to become a UNESCO World Heritage Site.

Sarnath is where Gautama Buddha's sangha first convened, when he gave the first teaching to his original five disciples Kaundinya, Assaji, Bhaddiya, Vappa and Mahanama, known as The First Turning of the Wheel of Dharma. This teaching occurred circa 528 BCE when the Buddha was approximately 35 years of age.

Anuradhapura (Sinhala: අනුරාධපුරය, romanised: Anurādhapuraya, IPA: [ənuraːd̪əpurəjə]; Tamil: அனுராதபுரம், romanised: Aṉurātapuram, IPA: [ɐnuɾaːðɐβuɾɐm]) is a major city located in the north central plain of Sri Lanka. It is the capital city of North Central Province and the capital of Anuradhapura District. The city lies 205 kilometers (127 mi) north of the current capital of Colombo in the North Central Province, on the banks of the historic Malwathu Oya. The city is now a World Heritage Site famous for its well-preserved ruins of the ancient Sinhalese civilisation.

While Mahāvaṃsa places the founding of the city in 437 BCE, the site has been inhabited for much longer, making it a major human settlement on the island for almost three millennia and one of the oldest continuously occupied cities in Asia. It is the cradle of the Hydraulic Sinhalese civilisation, Theravada Buddhism, and the longest-serving ancient capital of Sri Lanka that has survived for 1500 years. Moreover, it was the first capital of the Sinhala Kingdom of Rajarata, following the kingdoms of Tambapanni and Upatissa Nuwara. Anuradhapura was also the centre of Theravada Buddhism for many centuries and has been a major Buddhist pilgrimage site with ruins of many ancient Buddhist temples, including the famous Anuradhapura Maha Viharaya and the Jaya Sri Maha Bodhi, the oldest still-living, documented, planted tree in the world believed to have originated from the original Bodhi tree at Bodh Gaya (Bihar, India) under which the Buddha attained enlightenment. These vast networks of ancient temples and monasteries now cover over 100 square kilometers (40 sq mi) of area of the city today.