Explanation

• Awarded the Nobel Prize in 1993.
• First black president of South Africa: May 10, 1994, to 1999.
• Nelson Mandela International Day: July 18.
• Imprisoned in 1962, served 27 years in prison.
• Died on December 5, 2013.

Explanation

• Poet of Nature: William Wordsworth
• Nationality: English
• Famous for: Nature poetry
• Literary Period: Romantic Age
• Born on April 7, 1770, in Cockermouth, England.
• He died on April 23, 1850.

Last updated NS on 13-09-2026

Explanation

• Scientist Name: Ibn al-Nafis
• Date / Year: 1242 CE
• Major Work: Commentary on Anatomy in Avicenna's Canon
• He was a pioneering Arab physician
• Major contribution: Pulmonary circulation
• Blood pressure: Modern measurement/concept developed centuries later.

Explanation

• Ada Lovelace — first computer programmer
• 1843: Published the first machine algorithm in her notes on Babbage's Analytical Engine

Additional information:

• English mathematician and writer
• Full name: Augusta Ada King, Countess of Lovelace
• Daughter of poet Lord Byron
• She lived from 1815 to 1852.

Last updated NA on 10-09-2026

Explanation

• Usain Bolt is the world-record holder in both the 100-meter and 200-meter sprints.
• He set the 100m world record of 9.58 seconds in 2009.
• He set the 200m world record of 19.19 seconds in 2009.

Last verified on 08-09-2026