Conversation so far:
who built the stupa at sanchi in madhya pradesh mcq
The Great Stupa (also called stupa no. 1) was originally built in the 3rd century BCE by the Mauryan emperor Ashoka.
what is noteworthy about the great stupa
The Great Stupa is one of the oldest Buddhist monuments in the country and the largest stupa at the site.

Question: what is believed about the monument
Self-contained rewrite: what is believed about the great stupa