Adi Sri Shankara creates the Smarta tradition

Adi Sankara, “founder of the six-sect system.” popularized the ancient Smārta five-Deity altar—Gaṇapati, Sūrya, Vishṇu, Śiva and Śakti, and added Kumāra.

Image of Satguru Sivaya Subramuniyaswami
So great is the Sanatana Dharma that it defies all who doubt it, all who disdain it, all who disregard it, all who degrade it, with personal realization of its Truth.
—Gurudeva