The Farooq (one who discerns truth from falsehood), the ascend of Islam was at peak in his Khilafah (Caliphate) and the one who was so just that he never ever ordered to kill or oppress any civilian (muslim or non muslim) or even animal unjustly in his khilafah and the conqueror of Jerusalem peacefully!

• Conquered by Nebuchadnezzar II in 587 BC - Destroyed (even temple of Solomon)
• Conquered by Roman Emperor Titus in 70 AD - Destroyed
• Conquered by Umar RA in 638 AD - Peaceful
• Conquered by Christian Crusadors in 1099 AD - Extreme Massacres
• Conquered by Salahuddin Ayyubi in 1187 AD - Peaceful

Wear and Spread to people his virtues with pride.