Explanation

• Hazrat Ali (R.A) ruled as Caliph for about 4 years and 9 months (656–661 CE).
• His caliphate began in 35 AH (656 CE) after the martyrdom of Hazrat Uthman (R.A).
• It ended in 40 AH (661 CE) with his martyrdom in Kufa.

Last verified on 10-06-2026

Explanation

• The hardest substance in the world is diamond.
• Its hardness is due to the strong covalent bonding between its carbon atoms.
• This making it the most resistant to scratching.

Additional information:

• Category: Native minerals
• Cleavage: 111 (perfect in four directions)
• Crystal class: Hexoctahedral (m3m); H-M symbol: (4/m 3 2/m)
• Crystal habit: Octahedral
• Crystal system: Cubic
• Dana classification: 1.3.6.1
• Density: 3.5–3.53 g/cm3 3500–3530 kg/m3

Last verified on 07-06-2026

Explanation

• Gwadar is a deep-sea port city in Pakistan (Balochistan).
• Its main role is international trade and maritime shipping.
• Fishing is also an important local economic activity.
• It is a key part of the CPEC (China–Pakistan Economic Corridor).
• It connects Pakistan with the Arabian Sea and global trade routes.

Last verified on 07-06-2026

Explanation

• Greenland is the world’s largest island.
• It is located between the Arctic and Atlantic Oceans.
• It belongs to the Kingdom of Denmark.
• Population is about 56,000 people only.
• Area: 2.131 million km²
• Maximum width: 1,050 km
• Location: North America region (Arctic area)
• Capital: Nuuk

Last verified on 06-06-2026

Explanation

• FIR stands for First Information Report.
• It a document prepared by police under Section 154 of the Code of Criminal Procedure (CrPC) 1898.
• It starting criminal proceedings in cognizable cases.

Last verified on 11-05-2026

Explanation

• Foundation Date: 25 September 1969
• Headquarters: Jeddah, Saudi Arabia
• Official Languages: Arabic, English, French
• Total Members: 57 countries
• First Summit: Rabat, Morocco
• Significance: Largest international organization after the UN.

Last verified on 10-05-2026

Explanation

• The police system was first established by Umar ibn al-Khattab.
• He was the second Caliph (634–644 CE).
• A proper system of law enforcement and public safety was organized.
• He also introduced the Hijri calendar.
• He established systems like Bait-ul-Mal (treasury) and judiciary.

Last verified on 30-04-2026

Explanation

• The first writer of Wahi (Revelation) in Makkah was Khalid ibn Sa'id (R.A).
• He belonged to the Quraysh tribe.
• In Madinah, main scribe → Zayd ibn Sabit (R.A)
• Compilation of Qur’an → Abu Bakr (R.A) era

Last verified on 28-04-2026

Explanation

• Osman I was the founder of the Ottoman Empire.
• He established the empire in 1299 AD.
• He was a Turkish tribal leader known as Osman Gazi.
• His reign lasted from 1299 to 1324 AD.

Last verified on 26-04-2026

Explanation

• The Battle of Karbala took place on Muharram 10.
• In the year 61 A.H of the Islamic calendar (October 10, 680).
• In Karbala, present-day Iraq.
• It was fought between the army of the second Umayyad Caliph, Yazid I, and a small army led by Hussain ibn Ali (AS).
• The Umayyad Caliph Muawiyah I had nominated his son Yazid as his successor.

Last verified on 25-04-2026