The Welsh Judge Sir William Jones founded the Asiatic Society in 1784 at Calcutta, he studied palm leaf manuscripts of Sanskrit, the first Indo-European language, he found the similarities between Greek, Latin and his native Welsh, this led him into further research to find more similarities with Celtic, Germanic, Baltic, Slavic and Armenian languages, he concluded that Sanskrit was the Mother Tongue. He then investigated the Aryan tribes, who were the original speakers of Sanskrit, these nomadic tribes had settled and farmed places in Central Asia and thanks to palm leaves, had become intently literate, composing and recording many oral tales, such as the Rigveda, the pre-dates the Bible. So many palm leaf books still exist that the term Vedic-Sanskrit was coined, it was found that within these text that the Aryan Bronze Age pre-dates the Celtic Halstatt period by several hundred years.
The Russian archaeologist Victor Sarianidi discovered a lost Aryan civilization in the Karakum Desert in the 1970's, not far from Asgabat, near the Turkmenistan-Iranian border, the desert in ancient times was a fertile plain with agricultural activities. The wandering tribes of the Aryan traded with other civilizations, pushing out in all directions, trading over the Caspian Sea, but some went south, establishing new settlements in Pakistan and India, with their literacy some became Brahmin priests, recording chants and mantras onto palm leaves. This Bronze Age chanting can still be heard today, linguists have studied the Sanskrit and the sound-patterns, discovering at times that it was of no known language, but birdsong interpretation.