Hazrat Abu Bakr Siddique was the first caliph and one of the closest companions of the Holy Prophet Muhammad (PBUH). His real name was Abdullah and he belonged to the sub-tribe of Quraish. He was the best companion of Muhammad (PBUH) and stood with him through thick and thin. He remained with Holy Prophet Muhammad (PBUH) during the migration of Muslims from Makkah to Madina. One of his daughters- Hazrat Ayesha(RA)  married Hazrat Muhammad (PBUH). He was declared as Ameer-e-Haj (Leader of Pilgrimage) by Hazrat Muhammad (PBUH) in the 9th hijrah. After the demise of the Holy Prophet, he was chosen as the first caliph of the Muslim Ummah. He continued his services for Islam during his caliphhood which started in 632 A.D and ended in 634 A.D. During his era of caliphhood the Muslims won a lot of battles, especially in Iraq and Syria. He died on the 24th of August 634 A.D and he was buried on the left side of Hazrat Muhammad PBUH.