| Hazrat Usman was 3rd caliph of Islam duration of 12 years longest period of caliph his among all.He was Caliph for 12 years from 644-656 CE Hazrat Umar proposed the compilation of the Holy Quran. |
| Hazrat Usman was 3rd caliph of Islam duration of 12 years longest period of caliph his among all.He was Caliph for 12 years from 644-656 CE Hazrat Umar proposed the compilation of the Holy Quran. |