The early scholar Rudolf Hoernle proposed that given that the author of "Satapatha Brahmana" – an ancient Vedic text, was aware of Sushruta doctrines, those Sushruta doctrines should be dated based on the composition date of Satapatha Brahmana. The composition date of the Brahmana is itself unclear, added Hoernle, and he estimated it to be about the 6th century BCE. While Loukas et al. date the Sushruta Samhita to the mid 1st-millennium BCE, Boslaugh dates the currently existing text to the 6th-century CE.