Middle kingdoms of India
The Middle Kingdoms of India were the political entities that existed on the Indian subcontinent from 230 BCE to 1206 CE. The period began with the decline of the Maurya Empire and the corresponding rise of the Satavahana dynasty, initiated by Simuka in the 1st century BCE. The “middle” period lasted for over 1,200 years and concluded in 1206 CE with the establishment of the Delhi Sultanate and the gradual decline of the Later Cholas, the last of whom, Rajendra Chola III, died in 1279 CE.
This period encompasses two eras: Classical India, from the Maurya Empire up until the end of the Gupta Empire in 500 CE, and early Medieval India from 500 CE onwards. It also encompasses the era of classical Hinduism, which is dated from 200 BCE to 1100 CE. From 1 CE until 1000 CE, India's economy is estimated to have been the largest in the world, having between one-third and one-quarter of the world's wealth. This period was followed by the late Medieval period in the 13th century.
The Northwest
During the 2nd century BCE, the Maurya Empire became a collage of regional powers with overlapping boundaries. The whole northwest attracted a series of invaders between 200 BCE and 300 CE. The Puranas speak of many of these tribes as foreigners and impure barbarians. First the Satavahana dynasty and then the Gupta Empire, both successor states to the Maurya Empire, attempt to contain the expansions of the successive before eventually crumbling internally due to the pressure exerted by these wars.The invading tribes were influenced by Buddhism which continued to flourish under the patronage of both invaders and the Satavahanas and Guptas and provides a cultural bridge between the two cultures. Over time, the invaders became "Indianized" as they influenced society and philosophy across the Gangetic plains and were conversely influenced by it. This period is marked by both intellectual and artistic achievements inspired by cultural diffusion and syncretism as the new kingdoms straddle the Silk Road.
The Indo-Greeks
The Indo-Greek Kingdom covered various parts of the Northwestern South Asia during the last two centuries BCE, and was ruled by more than 30 Hellenistic kings, often in conflict with each other.The kingdom was founded when Demetrius I of Bactria invaded the Hindu Kush early in the 2nd century BCE. The Greeks in India were eventually divided from the Greco-Bactrian Kingdom centered in Bactria.
The expression "Indo-Greek Kingdom" loosely describes a number of various dynastic polities. There were numerous cities, such as Taxila, Pushkalavati and Sagala in Pakistan's Punjab. These cities would house a number of dynasties in their times, and based on Ptolemy's Geography and the nomenclature of later kings, a certain Theophila in the south was also probably a satrapal or royal seat at some point.
Euthydemus I was, according to Polybius a Magnesian Greek. His son, Demetrius, founder of the Indo-Greek kingdom, was therefore of Greek descent from his father at minimum. A marriage treaty was arranged for Demetrius with a daughter of Antiochus III the Great, who had partial Persian descent. The ethnicity of later Indo-Greek rulers is less clear. For example, Artemidoros Aniketos may have been of Indo-Scythian descent. Intermarriage also occurred, as exemplified by Alexander the Great, who married Roxana of Bactria, or Seleucus I Nicator, who married Apama of Sogdia.
During the two centuries of their rule, the Indo-Greek kings combined the Greek and Indian languages and symbols, as seen on their coins, and blended Greek, Hindu and Buddhist religious practices, as seen in the archaeological remains of their cities and in the indications of their support of Buddhism, pointing to a rich fusion of Indian and Hellenistic influences. The diffusion of Indo-Greek culture had consequences which are still felt today, particularly through the influence of Greco-Buddhist art. The Indo-Greeks ultimately disappeared as a political entity around 10 CE following the invasions of the Indo-Scythians, although pockets of Greek populations probably remained for several centuries longer under the subsequent rule of the Indo-Parthians and Kushan Empire.
The Yavanas
The Yavana or Yona people, literally "Ionian" and meaning "Western foreigner", were described as living beyond Gandhara. Yavanas, Sakas, the Pahlavas and Hunas were sometimes described as mlecchas, "foreigners". Kambojas and the inhabitants of Madra, the Kekeya Kingdom, the Indus River region and Gandhara were sometimes also classified as mlecchas. This name was used to indicate their cultural differences with the culture of the Kuru kingdom and Panchala.The Indo-Scythian Sakas
The Indo-Scythians are a branch of the Sakas who migrated from southern Siberia into Bactria, Sogdia, Arachosia, Gandhara, Kashmir, Punjab, and into parts of Western and Central India, Gujarat, Maharashtra and Rajasthan, from the middle of the 2nd century BCE to the 4th century CE. The first Saka king in India was Maues or Moga who established Saka power in Gandhara and gradually extended supremacy over north-western India. Indo-Scythian rule in India ended with the last of the Western Satraps, Rudrasimha III, in 395 CE.The invasion of India by Scythian tribes from Central Asia, often referred to as the "Indo-Scythian invasion", played a significant part in the history of India as well as nearby countries. In fact, the Indo-Scythian war is just one chapter in the events triggered by the nomadic flight of Central Asians from conflict with Chinese tribes which had lasting effects on Bactria, Kabul, Parthia and India as well as far off Rome in the west. The Scythian groups that invaded India and set up various kingdoms, included, besides the Sakas, other allied tribes, such as the Medes, Scythians, Massagetae, Getae, Parama Kambojas, Avars, Bahlikas, Rishikas and Paradas.
The Indo-Parthians
The Indo-Parthian Kingdom was founded by Gondophares around 20 BCE. The kingdom lasted only briefly until its conquest by the Kushan Empire in the late 1st century CE and was a loose framework where many smaller dynasts maintained their independence.The Pahlavas
The Pahlavas are a people mentioned in ancient Indian texts like the Manusmṛti, various Puranas, the Ramayana, the Mahabharata, and the Brhatsamhita. In some texts the Pahlavas are synonymous with the Pallava dynasty of South India. While the Vayu Purana distinguishes between Pahlava and Pahnava, the Vamana Purana and Matsya Purana refer to both as Pallava. The Brahmanda Purana and Markendeya Purana refer to both as Pahlava or Pallava. The Bhishama Parava of the Mahabharata does not distinguish between the Pahlavas and Pallavas. The Pahlavas are said to be same as the Parasikas, a Saka group. According to P. Carnegy, the Pahlava are probably those people who spoke Paluvi or Pehlvi, the Parthian language. Buhler similarly suggests Pahlava is an Indic form of Parthava meaning "Parthian". In a 4th-century BCE, the Vartika of Kātyāyana mentions the Sakah-Parthavah, demonstrating an awareness of these Saka-Parthians, probably by way of commerce.The Western Satraps
The Western Satraps were Saka rulers of the western and central part of India. Their state, or at least part of it, was called "Ariaca" according to the Periplus of the Erythraean Sea. They were successors to the Indo-Scythians and were contemporaneous with the Kushan Empire, which ruled the northern part of the Indian subcontinent and were possibly their overlords, and the Satavahana dynasty of Andhra who ruled in Central India. They are called "Western" in contrast to the "Northern" Indo-Scythian satraps who ruled in the area of Mathura, such as Rajuvula, and his successors under the Kushans, the "Great Satrap" Kharapallana and the "Satrap" Vanaspara. Although they called themselves "Satraps" on their coins, leading to their modern designation of "Western Satraps", Ptolemy's Geography still called them "Indo-Scythians". Altogether, there were 27 independent Western Satrap rulers during a period of about 350 years.The Kushans
The Kushan Empire originally formed in Bactria on either side of the middle course of the Amu Darya in what is now northern Afghanistan, Tajikistan and Uzbekistan; during the 1st century CE, they expanded their territory to include the Punjab and much of the Ganges basin, conquering a number of kingdoms across the northern part of the Indian subcontinent in the process. The Kushans conquered the central section of the main Silk Road and, therefore, had control of the overland trade between India, and China to the east, and the Roman Empire and Persia to the west.Emperor Kanishka was a great patron of Buddhism; however, as Kushans expanded southward toward the Indian subcontinent the deities of their later coinage came to reflect its new Hindu majority.