Explanation

• Chittaranjan Das (C. R. Das) was a prominent Indian nationalist leader and lawyer from Bengal.
• He participated in India’s freedom movement against British rule.
• He co-founded the Swaraj Party in 1923 with Motilal Nehru.

Last verified on 30-10-2026

Explanation

• Date of death: 10–11 June 323 BCE.
• Age: 32 years.
• Place of death: Babylon, present-day Iraq.
• Alexander the Great was the king of Macedonia.
• He was born in Pella in 356 BC.
• Largest Empire: Extended from Greece to northwestern India.

Last updated: 27 OCT 2026 

Explanation

• James Chadwick discovered the neutron in 1932.
• A neutron is a subatomic particle with no electric charge, found in the nucleus of an atom.
• He received the 1935 Nobel Prize in Physics for this discovery, which greatly improved scientific understanding of atomic structure.
• Neutrons help stabilize atomic nuclei.

Last verified on 25-10-2026

Explanation

Iyad bin Amin Madani is a Saudi politician who served in different cabinet posts.

He was the Secretary General of the Organisation of Islamic Cooperation from 2014 to November 2016.

He was the first Saudi official to hold that position.

Explanation

• First web browser: WorldWideWeb
• Invented by: Tim Berners-Lee
• Later name: Nexus
• Created: 1990
• Released: 1991
• Platform: NeXT computer
• First graphical web browser: NCSA Mosaic (1993)
• Programming Language: Objective-C
• Purpose: To access and browse web pages.