Explanation

Umar ibn al-Khattab was the second Rashidun caliph.

He was ruling from August 634 until his assassination in 644.

He was born in 584 AD.

He was the father-in-law of the Prophet Muhammad SAW.

He was the first Muslim to openly pray at the Kaaba.

He participated in nearly all battles.

He embraced Islam in 616 AD (6th Nabvi) at about 32 years old, after hearing verses from Surah Taha.