Explanation

• Artist: Leonardo da Vinci (1452–1519)
• Painting Period: 1503–1519
• Origin: Italy
• Current Location: Louvre Museum, Paris, France
• Famous Features: Mysterious smile, sfumato technique, widely copied and recognized globally

Last verified on 18-01-2026

Explanation

• The Indus Waters Treaty was signed on September 19, 1960, in Karachi.
• It was signed between Pakistan (President Ayub Khan) and India (Prime Minister Jawaharlal Nehru).
• It was brokered by the World Bank.

It became effective on April 1, 1960.

• Western Rivers (given to Pakistan): Indus, Jhelum, Chenab
• Eastern Rivers (given to India): Ravi, Beas, Sutlej

Last verified on 30-03-2026

Explanation

• The Social Boycott of Banu Hashim started in the 7th year of Prophethood (Nabvi).
• It was imposed by the Quraysh of Makkah against Banu Hashim and early Muslims.
• The boycott continued for 3 years (7th–10th Nabvi).

Last verified on 03-04-2026

Explanation

The first constitution of Pakistan was enforced on March 23, 1956

Additional information

List of the Constitution of Pakistan 1947 to date

First:   1956 Constitution

Explanation

• Vitamin A deficiency → Night blindness (Nyctalopia)
• Vitamin A is important for vision and immune function.

Additional information:

• Vitamin K is essential for blood clotting.
• Vitamin D helps in calcium absorption and bone mineralization.
• Vitamin B1 supports nerve function and energy metabolism.

Last verified on 01-02-2026

Explanation

• The demand for separate electorate was raised by the All-India Muslim League in 1906.
• First legal acceptance came in the Indian Councils Act 1909.
• This act is also known as the Morley-Minto Reforms.
• It was implemented on 12 March 1909.

Additional information:

• Introduced separate electorate for Muslims.
• Increased the size of Central and Provincial Legislative Councils.
• Central Council had about 60 total members (approx. structure).
• Around 27 members were elected under the reformed system.
• Provided reserved representation for Muslims through separate voting.

Last verified on 02-05-2026

Explanation

• Hazrat Umar (R.A) embraced Islam in 616 AD at the age of 32 years.
• This was the 6th year of Prophethood (6 Nabvi).
• He accepted Islam after hearing verses of Surah Taha.
• He later became the second Caliph (634–644 AD).

Last verified on 02-04-2026

Explanation

• The title Imam-e-Dar-ul-Hijrat was given to Imam Malik.
• Birth → 711 AD (Madinah)
• Death → 795 AD (Madinah)
• Book → Al-Muwatta
• Hadith Count → ~1,720 Hadith
• Field → Fiqh (Maliki School of Thought)

Last verified on 21-04-2026

Explanation

• Jabir ibn Hayyan, known as the "father of chemistry."
• He was an Arab Chemist.
• Composition of Alchemy was written by Jabir Bin Hayyan.

Notable ideas:

• Use of organic substances in chemistry
• Sulfur-mercury theory of metals
• Science of the balance
• Science of artificial generation

Last verified on 07-02-2026

Explanation

• Masjid al-Qiblatain is located in Medina.
• It is where Prophet Muhammad (P.B.U.H) changed the direction of prayer (Qibla) from Masjid al-Aqsa to Masjid al-Haram
• During the Zuhr prayer.
• The mosque has two domes and two minarets.
• It was founded by Sawad ibn Ghanam ibn Ka'ab and first opened in 1987.
• It is traditionally believed to have been built by Abraham and Ishmael.

Last verified on 30-03-2026