I don’t know why it was so successful at that
Answer:
healthy manpower is the foundation of national development because if there manpower between the citizen of country the country automatically become Development.ma'u does not abroad for their job .they can work in own country.
Muslims invaded North Africa and occupied those territories and imposed jizya on the people. After a while the Non-Muslims were sick of being oppressed by the invaders and decided to become Muslims so that the burden of an extra tax would be removed.
