After an early life of luxury under the protection of his father, the king of Kapilavastu (later to be incorporated into the state of Magadha), Siddharta entered into contact with the realities of the world and concluded that real life was about unbearable and inescapable suffering and sorrow. Siddharta renounced his meaningless life of luxury to became an ascetic. He ultimately decided that asceticism was also meaningless, and instead chose a middle way, a path of moderation away from the extremes of self-indulgence and self-mortification.

Under a fig tree, now known as the Bodhi tree, he vowed never to leave the position until he found Truth. At the age of 35, he attained Enlightenment. He was then known as Gautama Buddha, or simply "The Buddha", which means "the awakened one".

For the remaining 45 years of his life, he travelled the Gangetic Plain of central India (region of the Ganges/Ganga river and its tributaries), teaching his doctrine and discipline to an extremely diverse range of people.

The Buddha's reluctance to name a successor or to formalise his doctrine led to the emergence of many movements during the next 400 years: first the schools of Nikaya Buddhism, of which only Theravada remains today, and then the formation of Mahayana, a pan-Buddhist movement based on the acceptance of new scriptures.

The Mauryan emperor Ashoka the Great (273-232 BCE) converted to Buddhism after his bloody conquest of the territory of Kalinga (today's Orissa) in eastern India. Regretful of the horrors brought by the conflict, the king decided to renounce violence, and propagate the faith by building stupas and pillars urging for the respect of all animal life, and enjoining people to follow the Dharma. He also built roads, hospitals, resthouses, universities and irrigation systems around the country. He treated his subjects as equals regardless of their religion, politics or caste.

This period marks the first spread of Buddhism beyond India. According to the plates and pillars left by king Ashoka (the Edicts of Ashoka), emissaries were sent to various countries in order to spread Buddhism, as far as the Greek kingdoms in the West, in particular the neighboring Greco-Bactrian Kingdom, and possibly even farther to the Mediterranean according to the stone inscriptions left by Ashoka.

3rd Buddhist council (c.250 BCE)

Emperor Ashoka convened the third Buddhist council around 250 BCE at Pataliputra (today's Patna, India|Patna). It was held by the monk Moggaliputta. The objective of the council was to reconcile the different schools of Buddhism, to purify the Buddhist movement, particularly from opportunistic factions which had been attracted by the royal patronage, and to organize the dispatch of Buddhist missionaries throughout the known world.

The Pali canon (Tipitaka, or Tripitaka in Sanskrit, literally the "Three Baskets"), which comprises the texts of reference of traditional Buddhism and is considered to be directly transmitted from the Buddha, was formalized at that time. It consists of the doctrine (the Sutra Pitaka), the monastic discipline (Vinaya Pitaka) and an additional new body of subtle philosophy (the Abhidharma Pitaka).

The efforts of Ashoka to purify the Buddhist faith also had the effect of segregating against other emerging movements. In particular, after 250 BCE, the Sarvastivadin (who had been rejected by the 3rd council, according to the Theravada tradition) and the Dharmaguptaka schools became quite influential in northwestern India and Central Asia, up to the time of the Kushan Empire in the first centuries of the common era. The Dharmaguptakas were characterized by a belief that Buddha was separate, and above, the rest of the Buddhist community. The Sarvastivadin believed that past, present, and future are all simultaneous.

 

The Hellenistic world and Influences on Early Christianity

Some of the Edicts of Ashoka inscriptions describe the efforts made by Ashoka to propagate the Buddhist faith throughout the Hellenistic world, which at that time formed an uninterrupted continuum from the borders of India to Greece. The Edicts indicate a clear understanding of the political organization in Hellenistic territories: the names and location of the main Greek monarchs of the time are identified, and they are claimed as recipients of Buddhist proselytism: Antiochus II Theos]] of the Seleucid Kingdom (261–246 BCE), Ptolemy II Philadelphos of Egypt (285–247 BCE), Antigonus Gonatas of Macedonia (276–239 BCE), Magas of Cyrene (288–258 BCE), and Alexander II of Epirus (272–255 BCE).

 

Buddhist proselytism at the time of king Ashoka (260–218 BCE), according to the Edicts of Ashoka.

"The conquest by Dharma has been won here, on the borders, and even six hundred yojanas (4,000 miles) away, where the Greek king Antiochos rules, beyond there where the four kings named Ptolemy, Antigonos, Magas and Alexander rule, likewise in the south among the Cholas, the Pandyas, and as far as Tamraparni (Sri Lanka)." (Edicts of Ashoka, 13th Rock Edict, S. Dhammika).

Furthermore, according to Pali sources, some of Ashoka's emissaries were Greek Buddhist monks, indicating close religious exchanges between the two cultures:

"When the thera (elder) Moggaliputta, the illuminator of the religion of the Conqueror (Ashoka), had brought the (third) council to an end (...) he sent forth theras, one here and one there: (...) and to Aparantaka (the "Western countries" corresponding to Gujarat and Sindh) he sent the Greek (Yona) named Dhammarakkhita". (Mahavamsa XII).

It is not clear how much these interactions may have been influential, but some authors have commented that some level of syncretism between Hellenist thought and Buddhism may have started in Hellenic lands at that time. They have pointed to the presence of Buddhist communities in the Hellenistic world around that period, in particular in Alexandria (mentioned by Clement of Alexandria), and to the pre-Christian monastic order of the Therapeutae (possibly a deformation of the Pali word "Theravada"), who may have "almost entirely drawn (its) inspiration from the teaching and practices of Buddhist asceticism" (Robert Lissen).

Buddhist gravestones from the Ptolemaic period have also been found in Alexandria, decorated with depictions of the Dharma wheel (Tarn, "The Greeks in Bactria and India"). Commenting on the presence of Buddhists in Alexandria, some scholars have even pointed out that “It was later in this very place that some of the most active centers of Christianity were established” (Robert Linssen "Zen living").

In the 2nd century CE, the Christian dogmatist Clement of Alexandria recognized Bactrian Buddhists (Sramanas) and Indian Gymnosophists for their influence on Greek thought:

"Thus philosophy, a thing of the highest utility, flourished in antiquity among the barbarians, shedding its light over the nations. And afterwards it came to Greece. First in its ranks were the prophets of the Egyptians; and the Chaldeans among the Assyrians; and the Druids among the Gauls; and the Sramanas among the Bactrians; and the philosophers of the Celts; and the Magi of the Persians, who foretold the Saviour's birth, and came into the land of Judaea guided by a star. The Indian gymnosophists are also in the number, and the other barbarian philosophers. And of these there are two classes, some of them called Sramanas, and others Brahmins."- Clement of Alexandria "The Stromata, or Miscellanies" Book I, Chapter XV

 

Asian expansion

In the areas east of the Indian subcontinent (today's Burma), Indian culture strongly influenced the Mons. The Mons are said to have been converted to Buddhism around 200 BCE under the proselytizing of the Indian king Ashoka, before the fission between Mahayana and Hinayana Buddhism. Early Mon Buddhist temples, such as Peikthano in central Burma, have been dated between the 1st and the 5th century CE.

The Buddhist art of the Mons was especially influenced by the Indian art of the Gupta and post-Gupta periods, and their mannerist style spread widely in South-East Asia following the expansion of the Mon kingdom between the 5th and 8th centuries. The Theravada faith expanded in the northern parts of Southeast Asia under Mon influence, until it was progressively displaced by Mahayana Buddhism from around the 6th century CE.

Sri Lanka was allegedly proselytized by Ashoka's son Mahinda and six companions during the 2nd century BCE. They converted the king Devanampiya Tissa and many of the nobility. This is when the Mahavihara monastery, a center of Sinhalese orthodoxy, was built. The Pali Canon was put in writing in Sri Lanka during the reign of king Vittagamani (29–17 BCE), and the Theravada tradition flourished there, harbouring some great commentators such as Buddhaghosa (4th–5th century). Although Mahayana Buddhism gained some influence at that time, Theravada ultimately prevailed, and Sri Lanka turned out to be the last stronghold of Theravada Buddhism, from where it would expand again to South-East Asia from the 11th century.

There is also a legend, not directly validated by the edicts, that Ashoka sent a missionary to the north, through the Himalayas, to Khotan in the Tarim Basin, then the land of the Tocharians, speakers of an Indo-European language.

During the 1st century CE, the trade on the overland Silk Road tended to be restricted by the rise in the Middle-East of the Parthian empire, an unvanquished enemy of Rome, just as Romans were becoming extremely wealthy and their demand for Asian luxury was rising. This demand revived the sea connections between the Mediterranean and China, with India as the intermediary of choice. From that time, through trade connection, commercial settlements, and even political interventions, India started to strongly influence Southeast Asia|Southeast Asian countries. Trade routes linked India with southern Burma, central and southern Siam, lower Cambodia and southern Vietnam, and numerous urbanized coastal settlements were established there.

For more than a thousand years, Indian influence was therefore the major factor that brought a certain level of cultural unity to the various countries of the region. From the 5th to the 13th century, South-East Asia had very powerful empires and became extremely active in Buddhist architectural and artistic creation. The main Buddhist influence now came directly by sea from the Indian subcontinent, so that these empires essentially followed the Mahayana faith. The Sri Vijaya Empire to the south and the Khmer Empire to the north competed for influence, and their art expressed the rich Mahayana pantheon of the Bodhisattvas.

Emergence of the Vajrayana (5th century)

Vajrayāna Buddhism, also called Tantric Buddhism, first emerged in eastern India between the 5th and 7th centuries CE. It is sometimes considered a sub-school of Mahayana and sometimes a third major "vehicle" (Yana) of Buddhism in its own right. The Vajrayana is an extension of Mahayana Buddhism in that it does not offer new philosophical perspectives, but rather introduces additional techniques (upaya, or 'skilful means'), including the use of visualizations and other yogic practices. Many of the practices of Tantric Buddhism are also derived from Brahmanism (the usage of mantras, yoga, or the burning of sacrificial offerings).

Early Vajrayana practitioners were forest-dwelling Mahasiddas who lived on the margins of society, but by the 9th century Vajrayana had won acceptance at major Mahayana monastic universities such as Nalanda and Vikramshila. Along with much of the rest of Indian Buddhism, the Vajrayana was eclipsed in the wake of the late 12th century Muslim invasions. It has persisted in Tibet, where it was wholly transplanted from the 7th to 12th centuries and became the dominant form of Buddhism to the present day, and on a limited basis in Japan as well where it evolved into Shingon Buddhism.

Theravada Renaissance (11th century CE)

From the 11th century, the destruction of Buddhism in the Indian mainland by Islamic invasions led to the decline of the Mahayana faith in South-East Asia. Continental routes through the Indian subcontinent being compromised, direct sea routes between the through Sri Lanka and to China developed, leading to the adoption of the Theravada Buddhism of the Pali canon, introduced to the region around the 11th century CE from Sri Lanka.

King Anawrahta (1044-1077), the historical founder of the Burmese empire, unified the country and adopted the Theravada Buddhist faith. This initiated the creation of thousands of Buddhist temples at Pagan, the capital, between the 11th and 13th century. Around 2,000 of them are still standing. The power of the Burmese waned with the rise of the Thai (ethnic group)|Thai, and with the seizure of the capital Pagan by the Mongols in 1287, but Theravada Buddhism remained the main Burmese faith to this day.

The Theravada faith was also adopted by the newly founded ethnic Thai kingdom of Sukhothai around 1260. Theravada Buddhism was further reinforced during the Ayutthaya period (14th-18th century), becoming an integral part of the Thai society.

In the continental areas, Theravada Buddhism continued to expand into Laos and Cambodia in the 13th century. However, from the 14th century, on the coastal fringes and in the islands of South-East Asia, the influence of Islam proved stronger, expanding into Malaysia, Indonesia, and most of the islands as far as the southern Philippines.

However, since 1966 with Soeharto's rise of power in the aftermath of the bloody events after the so called "September 30th, 1965 murders", allegedly executed by the Communists Party, there has been a remarkable renaissance of Buddhism in Indonesia as in Malaysia. Today it is estimated there are some 10 million Buddhists in Indonesia and another 15 million in Malaysia. A large part of them are people of Chinese ancestry.

Expansion of Buddhism to the West

After the Classical encounters between Buddhism and the West recorded in Greco-Buddhist art, information and legends about Buddhism seem to have reached the West sporadically. During the 8th century, Buddhist Jataka stories were translated into Syriac and Arabic as Kalilag and Damnag. An account of Buddha's life was translated in to Greek by Saint John of Damascus, and widely circulated to Christians as the story of Barlaam and Josaphat. By the 1300s this story of Josaphat had become so popular that he was made a Catholic saint.

The next direct encounter between Europeans and Buddhism happened in Medieval times when the Franciscan friar William of Rubruck was sent on an embassy to the Mongol court of Mongk] by the French king Louis IX in 1253. The contact happened in Cailac (today's Qayaliq in Kazakhstan), and William originally thought they were wayward Christians (Foltz, "Religions of the Silk Road").

Major interest for Buddhism emerged during colonial times, when Western powers were in a position to witness the faith and its artistic manifestations in detail. European philosophy was strongly influenced by the study of oriental religions during that period.

The opening of Japan in 1853 also created a considerable interest for the arts and culture of Japan, and provided access to one of the most thriving Buddhist cultures in the world.

Buddhism started to enjoy a strong interest from the general population in the West during the 20th century, following the perceived failure of social utopias, from Fascism to Marxism. After the Second World War, the focus of progress tended to shift to personal self-realization, on the material as well as spiritual plane.

In this context, Buddhism has been displaying a strong power of attraction, due to its tolerance, its lack of deist authority and determinism, and its focus on understanding reality through self inquiry. It is now the fastest growing religion in developed countries.