I would also like to say 'Gowthami putra Satakarni'.
He is a Satavahana dynasty emperor who fought Greeks and other foreigners.
He ruled Telugu regions and Maharashtra.
In those days it is referred as Dharma, even Hindus also referred what they followed as Dharma. the classification is a recent one.
Yes the practices and beliefs differ and they are different from Brahmanism.
That is not Buddhism, it is basically Dharma !
Buddhism, Hindusim etc..etc.. are the classification given by the people who do not understand the very essence of this topic.