The Sage of the Sakyas was a Kirati Prince and so was Ashok.
King Sthunko was the ruling monarch of Kiratdom of Kathmandu when Ashok had come calling. To commemorate this visit Ashok had founded the City of Deo Pattan (now known as Patan) and given his daughter Charumati in marriage to a nobleman of the Kirati Court. (Many pseudo-historians are now busy spreading a disinformation that the nobleman was a Rajput, whereas the term Rajput itself was not even created until some fifteen centuries later).
Upon returning to his capital city Pataliputra, Ashok wasted no time before determining the central point of his empire and there at Sanchi, Central India, he created the most majestic replica of the Temple of Swayambhunath. However, after his demise, his successors lacked his dynamism and drive and gradually his empire broke up fragmented. None of these local chiefs who emerged from the vacuum were followers of the Enlightened One, instead they championed the cause of Deota worship (later identified as Hinduism).
Thus the magnificent Temple of Swayambhunath at Sanchi fell into disuse and decay where it remained forgotten for nearly two millennium until the British Archeologists discovered the ruins deep in the jungles of tropical India. Credit must go entirely to the Archeological Survey of British India for having preserved the ruins from further plunder but the archeologists could do no more than leaving the site status quo.
The magnificent ruins of Swayambhunath at Sanchi is surrounded by exquisitely carved gates and facades, which after these many centuries of neglect are still left in reasonable shape. These carvings depict Emperor Ashok arriving at Sanchi in a chariot with great fanfare while the royal entourage bring up the rear on elephants. These carvings show with great precision that Emperor Ashok and bulk of his subjects were Kirati-Mongolians.
It remains to be seen when the time comes, and it surely will, when the superstructures will be added to the hemispherical remains to bring Swayambhunath of Sanchi back to its former glory.