@Ramafuchs,
Tamilian civilisation formed the basis for Indian civilisation. Tamilian culture spread all over India according to S.A. Taylor and other researchers. Tamilians from the south migrated north when Kumari Kandam that is the southern tip of India was eroded by the sea.
These people settled around the banks of the Sindu river and over the years were responsible for the creation of Indus Valley civilisation according to Heras, a christian priest, who did research about that era.
The word Tamilar underwent many changes to Dravidia as follows, Tamilar-Tamilia-Tamila-Ithramila-Ithradida-Dravida, according to linguistic researchers and hence, it can be seen that the Sindu-Dravida civilasations was Tamilian civilisation.
Indus valley civilisation is more or less 7000 years old and there is documentary proof to show that it is very advanced, people were well versed in architecture, laying of roads, making clothes, furniture, jewellery and utensils. The Tamilians were very knowledgeable in the arts, business, religion, language and administration.
Tamilians in the Sindu area spoke in olden Tamil called Kodunth Tamil. When they migrated to other parts of India, the language changed based on the dialects of those areas. When people migrated to different countries, their language further changed as it was influenced by that country's dialect.
Lingustic researchers say that the north-dravidia tamil merged with languages from Sumeria, North Africa and even Europe. The north-dravidia language later merged with the Persians and European languages brought in by the Aaryans.
Aaryan, a white race, who were mostly shepherds, lived in the area between the Caspian Sea and Black Sea and the these people had to migrate due to natural disasters. They migrate in groups to Europe and Persia. From Persia, they moved to India through passing Khyber. As their language had many Persian words, scholars used that as evidence to show that they had stayed there for a long period.
Aarya vedas were a combination of old Indo-European languages. After settling in Sindu area their language absorbed old Tamil words. This was called piragrtham and most of the mantras were in this spoken language. Tamils also contributed to this new version. As most of the new words and pronunciation were not seen in European, Persian or Aarya dialects, it was deduced by scholars that the new words were Tamil. The language was corrected over the years and was known as Sanskrit which means a corrected language.
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