Mauryan Empire timeline,

By the end of the sixth century B.C., India's northwest was integrated into the Persian Achaemenid Empire and became one of its satrapies. This integration marked the beginning of administrative contacts between Central Asia and India.

Although Indian accounts to a large extent ignored Alexander the Great's Indus campaign in 326 B.C., Greek writers recorded their impressions of the general conditions prevailing in South Asia during this period. Thus, the year 326 B.C. provides the first clear and historically verifiable date in Indian history. A two-way cultural fusion between several Indo-Greek elements--especially in art, architecture, and coinage--occurred in the next several hundred years. North India's political landscape was transformed by the emergence of Magadha in the eastern Indo-Gangetic Plain. In 322 B.C., Magadha, under the rule of Chandragupta Maurya, began to assert its hegemony over neighboring areas. Chandragupta, who ruled from 324 to 301 B.C., was the architect of the first Indian imperial power--the Mauryan Empire (326-184 B.C.)--whose capital was Pataliputra, near modern-day Patna, in Bihar.

Situated on rich alluvial soil and near mineral deposits, especially iron, Magadha was at the center of bustling commerce and trade. The capital was a city of magnificent palaces, temples, a university, a library, gardens, and parks, as reported by Megasthenes, the third-century B.C. Greek historian and ambassador to the Mauryan court. Legend states that Chandragupta's success was due in large measure to his adviser Kautilya, the Brahman author of the Arthashastra (Science of Material Gain), a textbook that outlined governmental administration and political strategy. There was a highly centralized and hierarchical government with a large staff, which regulated tax collection, trade and commerce, industrial arts, mining, vital statistics, welfare of foreigners, maintenance of public places including markets and temples, and prostitutes. A large standing army and a well-developed espionage system were maintained. The empire was divided into provinces, districts, and villages governed by a host of centrally appointed local officials, who replicated the functions of the central administration.

Ashoka, grandson of Chandragupta, ruled from 269 to 232 B.C. and was one of India's most illustrious rulers. Ashoka's inscriptions chiseled on rocks and stone pillars located at strategic locations throughout his empire--such as Lampaka (Laghman in modern Afghanistan), Mahastan (in modern Bangladesh), and Brahmagiri (in Karnataka)--constitute the second set of datable historical records. According to some of the inscriptions, in the aftermath of the carnage resulting from his campaign against the powerful kingdom of Kalinga (modern Orissa), Ashoka renounced bloodshed and pursued a policy of nonviolence or ahimsa, espousing a theory of rule by righteousness. His toleration for different religious beliefs and languages reflected the realities of India's regional pluralism although he personally seems to have followed Buddhism (see Buddhism, ch. 3). Early Buddhist stories assert that he convened a Buddhist council at his capital, regularly undertook tours within his realm, and sent Buddhist missionary ambassadors to Sri Lanka.Contacts established with the Hellenistic world in The Mauryan Empire the reign of Ashoka's predecessors served him well. He sent diplomatic-cum-religious missions to the rulers of Syria, Macedonia, and Epirus, who learned about India's religious traditions, especially Buddhism. India's northwest retained many Persian cultural elements, which might explain Ashoka's rock inscriptions--such inscriptions were commonly associated with Persian rulers. Ashoka's Greek and Aramaic inscriptions found in Kandahar in Afghanistan may also reveal his desire to maintain ties with people outside of India.

After the disintegration of the Mauryan Empire in the second century B.C., South Asia became a collage of regional powers with overlapping boundaries. India's unguarded northwestern border again attracted a series of invaders between 200 B.C. and A.D. 300. As the Aryans had done, the invaders became "Indianized" in the process of their conquest and settlement. Also, this period witnessed remarkable intellectual and artistic achievements inspired by cultural diffusion and syncretism. The Indo-Greeks, or the Bactrians, of the northwest contributed to the development of numismatics; they were followed by another group, the Shakas (or Scythians), from the steppes of Central Asia, who settled in western India. Still other nomadic people, the Yuezhi, who were forced out of the Inner Asian steppes of Mongolia, drove the Shakas out of northwestern India and established the Kushana Kingdom (first century B.C.-third century A.D.). The Kushana Kingdom controlled parts of Afghanistan and Iran, and in India the realm stretched from Purushapura (modern Peshawar, Pakistan) in the northwest, to Varanasi (Uttar Pradesh) in the east, and to Sanchi (Madhya Pradesh) in the south. For a short period, the kingdom reached still farther east, to Pataliputra. The Kushana Kingdom was the crucible of trade among the Indian, Persian, Chinese, and Roman empires and controlled a critical part of the legendary Silk Road. Kanishka, who reigned for two decades starting around A.D. 78, was the most noteworthy Kushana ruler. He converted to Buddhism and convened a great Buddhist council in Kashmir. The Kushanas were patrons of Gandharan art, a synthesis between Greek and Indian styles, and Sanskrit literature. They initiated a new era called Shaka in A.D. 78, and their calendar, which was formally recognized by India for civil purposes starting on March 22, 1957, is still in use.The Mauryan Empire page