Since 990/1582, as a result of Islamization, the Parāčī have experienced profound changes in their religious beliefs and ethics. For a long time these affected their language without really endangering it. However the isolation protecting them from the common languages gradually decreased as the political unification undertaken by Amir ʿAbd-al-Raḥmān (1302-19/1885-1901) progressed. More recently, construction of roads and compulsory military service have dealt a fatal blow. Economic development accomplished the rest; not only did it create new needs, upset the traditional network of market places, and break the balance of prices for agricultural and industrial products, it also permanently destroyed Parāčī self-sufficiency by drawing irreplaceable manual labor to the factories and the towns.