Which medieval ruler introduced the system of “patta” and “qabuliyat” to help the peasants?

In medieval India, why was the mansabdari system introduced?

Who introduced ‘Do-aspa and Sih-aspa’ system?

With which medieval ruler would you associate the statement ‘I would have lost the empire just for a handful of millet’?

The medieval Indian writer who refers to the discovery of America is

The Mansabdari System introduced by Akbar was borrowed from the system followed in –