You are wrong..there r mentions of lord aiyappa in tamil literatures.The Tamil song, Shasta Varavu, states that there are 8 important incarnations and forms of Shasta. Among the Ashta-Shasta, the Adi Maha Sastha (Aiyanar) and Dharma Shasta (Ayyappan) are widely worshipped.
The iconography of Sastha is discussed in Agama texts such as Amsumadbhedaagama, Karanaagama and Suprabhedaagama. Sastha or Ayyappa was essentially a Tamil deity, according to H. Sarkar, who conducted one of the most comprehensive architectural surveys of Kerala temples.
Prof R.nagasamy, former director of Tamilnadu archeology has done a detailed research on how ancient culture in kerla was linked to sangam age even 2000yrs ago!
And there was no exactly as kerla in ancient India..it was either chera nadu or malanaadu. Present tamil and kerla belonged to ancient sangam period and Malayalam is a variant of western Tamil language and it arose only after 8th cent AD !
See my thread on sangam period and its literatures !
In ancient India, Medical science were divided into two major traditions, the Atreya School based in Takshashila & the Dhanvantri School based in Benaras.
The Atreya school gave more prominence to the practice of medicine and their primary text was the Charaka Samahita while the Dhanvantri school gave greater prominence to surgery and referred to the Sushruta Samhita.
Now coming to sushruta, some scholars are saying that there was original Sushruta Samhita which had 5 books & 120 chapters. Later was redacted by Nagarjuna & some were added as supplements giving rise to 6 books & 186 chps.
This thread is mainly abt Manusmriti seen from a historians/indologist's perspective. Not for orthodox people !
Manava Dharmasastra (MDh) among the ancient Indian treatises on dharma was clearly established by the 5th century CE and possibly as early as the 3rd CE.
Many historians/indologist came to a conclusion that manusmriti was not composed by a single author as it was a gradual process at the hands of anonymous and successive compilers, editors, and copyists lasting for several centuries.
The Saṅgam age is the period in the history of ancient Tamil Nadu (the present Tamilnadu, Kerala, parts of Andhra Pradesh, parts of Karnataka and northern Sri Lanka) spanning from 4th C.B.C to 2nd C.A.D.
According to Tamil legends there were three Saṅgam periods, viz., Thalai Saṅgam, Iḍai Saṅgam and Kaḍai Saṅgam. However the historians refer to only the Third Saṅgam or Kaḍai Saṅgam as the “Saṅgam period.”
Most of the available Saṅgam Literature are from third Saṅgam period. This collection contains 2381 poems in Tamil composed by 473 poets, some 102 of whom remain anonymous. Now let's discuss briefly abt sangam literatures.
Amongst many allegations levelled by the critics against Savarkar, the following two are most prominent:
*Savarkar “apologised” to the British and then turned into a “British agent”
*Savarkar opposed the Quit India movement and helped British by recruiting hindus in army!
Savarkar favoured the militarisation of hindus even before WW2 occured ! And if he was a "British stooge" why did he write a letter to US prez to persuade UK to withdraw British imperialism?
Savarkar concluded that even though u openly resist Indian soldiers placement in British military, it doesn't gonna matter as u r already supporting them indirectly through taxes, working in postal, railways etc! So we should seize this opportunity!Even Netaji supported his view!