At this stage, it is nearly impossible to say with certainty to whom Lord Shiva first taught His Vaedyak Shástra [school of medicine]. As far as one can determine, He first instructed a non-Aryan, Karkat́ii Rákśasii by name. (Many arrogant Aryans called non-Aryans by derisive names such as dánava [devil], daetya [devil] or rákśasa [demon].) In all of India, Karkat́ii Rákśasii alone could confidently treat cholera and cancer. Unfortunately, some people, misguided by dogmas, killed her in an inhuman way.