Explanation

Explanation

Umar was the second muslim Caliph and reigned during 634 to 644 CE.

THE REFORMS OF UMAR'S ERA.

Umar undertook many administrative reforms and closely oversaw public policy, establishing an advanced administration for newly conquered lands, including several new ministries and bureaucracies,

as well as ordering a census of all the Muslim territories.

During his reign, the garrison cities of Basrah and al-Kūfah were founded or expanded.

In 638, he extended and renovated the Grand Mosque in Mecca and the Mosque of the Prophet in Medina.

He also began the process of codifying Islamic law.

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Explanation

• First Caliph: Hazrat Abu Bakr (June 8, 632 – August 23, 634)
• Second Caliph: Hazrat Umar (R.A.)
• Third Caliph: Hazrat Usman (R.A.)
• Fourth Caliph: Hazrat Ali (R.A.) (656–661 CE)

Sahabi who proposed Hazrat Abu Bakr for the Caliphate: Hazrat Umar (R.A.)

Explanation

Ameer Muawiyah (R.A) established Postal System

Purposes: speed up the arrival of intelligence from his outlying provinces.

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About  Ameer Muawiyah (R.A)
Mu'awiya I  was the founder and first caliph of the Umayyad Caliphate serving from 661 until his death.
 He became caliph less than thirty years after the death of the Islamic prophet Muhammadﷺ
Muawiyah was appointed as the Governor of Syria after his brother Yazid ibn Abu Sufyan died

Explanation

The Qur'an was first compiled into a book format by Hazrat Zaid bin Sabit and other scribes under the first caliph Hazrat Abu Bakar.

Hazrat Usman (R.A.) was the first Hafiz of the Holy Quran.

Umal Mumneen Hafsah bint-e-Umar (R.A) was the first Hafiz of the Holy Quran in women.