Explanation

• Inventor: Tim Berners-Lee
• Collaborator: Robert Cailliau
• Year of invention: 1989 August
• Organization: CERN (European physics lab, Switzerland)
• First website: 1991 (public release)
• WWWW stands for World-Wide Web Worm.

Last verified on 24-06-2026

Explanation

• William Harvey discovered the circulation of blood.
• He was the first physician to completely describe systemic blood circulation.
• Famous book: De Motu Cordis (On the Motion of the Heart and Blood) (1628)
• He is known as the Father of Circulation of Blood.

Additional information:

• Birth: 1578
• Death: 1657

Last verified on 23-06-2026

Explanation

• Father of PC: Edward Roberts
• First PC: Altair 8800
• Year: 1975
• Country: USA
• Impact: Start of personal computing era

Last verified on 21-06-2026

Explanation

• Inventor: Igor Sikorsky
• First successful model: VS-300
• First flight: 1939 (USA)
• Contribution: Practical helicopter design
• Field: Aviation engineering

Last verified on 21-06-2026

Explanation

• Vasco da Gama was the first European to reach India by sea in 1498.
• He was a Portuguese explorer who arrived at Calicut (India) via the Cape of Good Hope route.
• His voyage opened the sea route between Europe and Asia.
• This event marked the beginning of European colonial influence in India.
• He later died in India in 1524.

Last verified on 20-06-2026