The Assembly between 1789 and 1791 was called "Constituante" and had to purpose to give a Constitution to the monarchy. 
 The main reforms were : 
 - abolition of the privileges (of the nobility and of the churches) : all the citizens are equal 
 - suppression of old provinces and creation of departements (with an elected president for each of them) 
 - nationalization of the Church's properties 
 - creation of banknotes ("assignats") 
 - secularization of the civil service (civil marriage ; divorce ; civil constitution of the Church) 
 - separation of power between legislative (elected Assembly) and executive (King and ministers)