Also: 1. It omits Manicheaism, which as I understand, had a significant following for a century or two. 2. I am kinda doubtful that Hinduism spread to Indo-Chi

Also: 1. It omits Manicheaism, which as I understand, had a significant following for a century or two. 2. I am kinda doubtful that Hinduism spread to Indo-China and Southeast Asia as early as 1000 BCE. The cultural diffusion happened much later, with the rise of the maritime kingdoms of Southern India. (One cannot really call it a religious conversion, since that concept isn't explicit in Hindu religious cannon)