The monuments themselves attest it.
There is, indeed, a singular uniformity of statement in the myths.
Viracocha, under any and all his surnames, is always described as white and bearded, dressed in flowing robes and of imposing mien.

His robes were also white, and thus he was figured at the entrance of one of his most celebrated temples, that of Urcos.

His image at that place was of a man with a white robe falling to his waist, and thence to his feet; by him, cut in stone, were his birds, the eagle and the falcon.[1] So, also, on a certain occasion when he was said to have appeared in a dream to one of the Incas who afterwards adopted his name, he was said to have come with beard more than a span in length, and clothed in a large and loose mantle, which fell to his feet, while with his hand he held, by a cord to its neck, some unknown animal.

And thus in after times he was represented in painting and statue, by order of that Inca.[2] [Footnote 1: Christoval de Molina, _ubi supra_, p.

29.] [Footnote 2: Garcilasso de la Vega, _Comentarios Reales_, Lib.