An inscription carved into stone in 115 BCE tells the story of Heliodoros, an envoy from the Greco-Bactrian king Amtalikita. He declared himself a bhagavata devoted to Vasudeva on a pillar standing in modern Vidisha, Madhya Pradesh. This artifact represents one of the earliest unambiguous images of the deity found by numismatic and sculptural evidence. The ancient emergence of Vaishnavism remains unclear with inconsistent historical records. Scholars suggest it formed as a fusion of various regional non-Vedic religions with worship of Vishnu during the 7th to 4th century BCE. Popular non-Vedic theistic traditions like the Bhagavata cults of Vāsudeva-Krishna and Gopala-Krishna developed before being identified with the Vedic God Vishnu in early centuries CE. Dandekar argues that what is understood today as Vaishnavism did not originate in Vedism but emerged from the merger of several popular theistic traditions after the decline of Brahmanism. Vaishnavism initially formed as Vasudevism around Vāsudeva, a deified leader of the Vrishnis who was one of the Vrishni heroes. Later, Vāsudeva was amalgamated with Krishna, the deified tribal hero and religious leader of the Yadavas. This merged deity became known as Bhagavan Vāsudeva-Krishna due to the close relation between the tribes of the Vrishnis and the Yadavas. A subsequent merger occurred with the cult of Gopala-Krishna of the cowherd community of the Abhıras in the 4th century CE. The character of Gopala Krishna is often considered to be non-Vedic. These mergers positioned Krishnaism between the heterodox sramana movement and the orthodox Vedic religion. The Greater Krsnaism then adopted the Rigvedic Vishnu as Supreme deity to appeal to orthodox elements. According to Klostermaier, Vaishnavism originates in the last centuries BCE and the early centuries CE. The cult of the heroic Vāsudeva was later amalgamated with Krishna, hero of the Yadavas, and still several centuries later with the divine child Bala Krishna of the Gopala traditions. In some books Krishna is presented as the founder and first teacher of the Bhagavata religion. The term Bhagavata seems to have developed from the concept of the Vedic deity Bhaga and initially it seems to have been a monotheistic sect independent of the Brahmanical pantheon. The development of the Krishna-traditions was followed by a syncretism of these non-Vedic traditions with the Mahabharata canon thus affiliating itself with Vedism in order to become acceptable to the orthodox establishment. The Vishnu of the Rig Veda was assimilated into non-Vedic Krishnaism and became the equivalent of the Supreme God. The appearance of Krishna as one of the Avatars of Vishnu dates to the period of the Sanskrit epics in the early centuries CE. The Bhagavad Gita, initially a Krishnaite scripture according to Friedhelm Hardy, was incorporated into the Mahabharata as a key text of Krishnaism. Finally, the Narayana worshippers were also included which further brahmanized Vaishnavism. The Nara-Narayana worshippers may have originated in Badari, a northern ridge of the Hindu Kush, and was absorbed into the Vedic orthodoxy as Purusa Narayana. Purusa Narayana may have later been turned into Arjuna and Krsna.