Who was the first Caliph (Khalifa) of Islam after the death of the Prophet (PBUH)?

Explanation

– Abu Bakr (RA) was chosen as the first Caliph of Islam following the Prophet’s death in 11 AH, selected after deliberations among the companions at Saqifah Bani Sa’idah.
– His caliphate, though brief, was marked by decisive action to preserve the unity of the growing Muslim state.
– For exams, remember that Abu Bakr’s caliphate lasted approximately two years, from 11 AH to 13 AH.