The Muslim rulers after prophet Muhammad death in year 632 AD were called Caliphs. The first Caliph was Abou Bakr. The Caliph after death of the Caliph Abou Bakr was Omar Ibn Al-Khattab. That is why he was the second Caliph.
Answer: The second Caliph Omar ibn Al-Khattab.
He is Omar Ibn Al-Khattab (May God be pleased with him).
'Ali was murdered by supporters of his Umayyed rivals in 661.
Umar (omar)
The region of the Arab Peninsula, currently called Saudi Arabia. The Caliph Omar Ibn Alkhattab.
The second caliph(governor of muslims in place of prophet Mohamed) Omar ibn Al-Khattab.
The region of the Arab Peninsula, currently called Saudi Arabia. The Caliph Omar Ibn Alkhattab.
Caliph Omar/Omer/Umar (RA), the second Rashidun Khalifa or Rightly-Guided Caliph, reigned from August 23, 634 to November 7, 644, when he was killed by a Persian prisoner.
The Muslims leader (Caliph) after Abu Bakr was Omar Ibn Alkhattab (as the second Caliph).
It was during the reign of the second Rightful Caliph Hazrat Omar RAU the Islam spread far and wide.
Damascus was conquered during the reign of second Rightful Caliph Hazrat Omar (RAU). It became Islamic in 638 CE.
Umar or Omar, was a son of a powerful and influential Muslim caliph