निम्नलिखित मौर्य सम्राटों में से किसने सांची में स्थित प्रसिद्ध महान स्तूप का निर्माण करवाया था?

In Ancient Indian Statecraft, Kautilya's 'Rajamandala' theory primarily deals with:

The First Buddhist Council was held at ______.

Which ancient Indian text contains references indicating that population counts or census-like records were maintained in ancient India?