Umar Ibn al-Khattab (584-644 M) was the second caliph in Islamic history after replacing Abu Bakr al-Siddiq. He one of companions Prophet SAW who had strong morals, energetic, fair, and wise, a firm complex character, managerial administrative abilities. as caliph, only ruled for more than ten years, but that short period, there were many successes advancements experienced by society, especiall...