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.

Explanation

• Queen Victoria became the Empress of India (Kaisar-e-Hind) in 1876.
• Although she was officially proclaimed Empress of India on January 1, 1877.
• This change in title was the result of the British government passing the Royal Titles Act.

Last verified on 08-10-2026

Explanation

• Famous field: Medicine
• His famous medical work Kitab al-Hawi (The Comprehensive Book of Medicine) was widely influential.
• He also wrote an important treatise distinguishing smallpox and measles.

Additional information:

• Full name: Abu Bakr Muhammad ibn Zakariya al-Razi
• Born: c. 865 CE, Rayy, Persia
• Died: c. 925 CE

Last verified on 08-10-2026