Explanation

• Electron: Discovered by J. J. Thomson, 1897

Additional information:

• Proton: Discovered by Ernest Rutherford, 1919
• Neutron: Discovered by James Chadwick, 1932
• Atomic Model Proposed: Plum Pudding Model
• Significance: First subatomic particle discovered

Last verified on 16-01-2026

Explanation

• Scientist: Edward Jenner
  • Discovery Year: 1796
  • Vaccine Type: Smallpox
  • Significance: First ever successful preventive vaccine
  • Extra Fact: Smallpox was declared eradicated in 1980 by WHO

Additional information:

• Edward Jenner is often called the “Father of Immunology.”

Last verified on 16-01-2026

Explanation

• Date: 10 April
• Year of Constitution Approval: 1973, April 10
• Golden Jubilee Declaration: 2023, April 10
• Significance: Commemorates the country’s supreme law and democratic framework

Last verified on 16-01-2026

Explanation

• Liz Truss succeeded Boris Johnson.
• She was followed by Rishi Sunak.
• She was the third female Prime Minister of the UK after Margaret Thatcher and Theresa May.

Explanation

• Emperor: Jahangir
• Reign: 1605–1627
• Tomb Location: Shahdara Bagh, Lahore, Pakistan
• Construction of Tomb: Completed in 1637
• Famous For: Justice, cultural contributions, and expansion of Mughal architecture

Last verified on 16-01-2026

Explanation

Date: 16 September

UN Proclamation Year: 1994

Ozone Layer Discovery: 1985 (Montreal Protocol signed in 1987)

Additional information:

• Theme 2024: Montreal Protocol: Advancing Climate Action
• Theme 2025: From Science to Global Action

Last verified on 16-01-2026

Explanation

Death: 10 October 2021 (85 years) due to lungs problem

Funeral Prayer Leader: Prof. Dr. Ahmad Al-Ghazali

Additional information:

• Birth: 1 April 1936, Bhopal, India.
• Title: Mohsin-e-Pakistan and Father of Pakistan’s Nuclear Program

Last verified on 16-01-2026

Explanation

• Last Viceroy of India: Lord Mountbatten in 1947

Additional information:

• First Viceroy of India: Lord Canning in 1858
• First Governor of Bengal: Robert Clive
• First Governor-General of Bengal: Warren Hastings (1772-1785)
• First Governor-General of India: William Bentinck in 1833

Last verified on 16-01-2026

Explanation

Died: 8 September 2022, Scotland

Additional information:

Born: 21 April 1926, Mayfair, London

Became Queen: 6 February 1952 (after King George VI)

Age at Accession: 25 years

Reign: 1952 – 2022 (70 years, 214 days, longest in British history)

Significance: First female monarch with the longest reign

Last verified on 16-01-2026

Explanation

• US Official: Nancy Pelosi
• Landed in Taiwan: 2 August 2022
• Became Speaker: January 2019
• Historic Fact: Only female in U.S. history to serve as Speaker of the House

Last verified on 16-01-2026