Today’s History आज का इतिहास -25 April

Top 5 Incidents from India and World History of 25 April-  DNA Model- Crick & Watson, First Cell of Solar Cell, Patent for IC , Color TV Program, Stern Magazine Publish Hitler’s dairy and more

  • 1953 – Francis Crick and James Watson publish “Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid” describing the double helix structure of DNA.

  • Double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating groups of sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases: adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by bonds between the bases, adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.


  • 1954 –The first practical solar cell is publicly demonstrated by Bell Telephone Laboratories.

  • 1961 – Robert Noyce is granted a patent for an integrated circuit.

  • IC is n assembly of electronic components, fabricated as a single unit, in which miniaturized active devices (e.g., transistors and diodes) and passive devices (e.g., capacitors and resistors) and their interconnections are built upon a thin substrate of semiconductor material mostly silicon to achieve a common function.
  • Package variety chart
  • 1982 – India’s first telecast color broadcasting started on Doordarshan, New Delhi, India

  • 1983 – Germany’s Stern Magazine Started publishing Hitler’s personal dairy.

Birth & Death

  • Hemwati Nandan Bahuguna (25 April 1919 – 17 March 1989) was a Congress Party leader and former Chief Minister of Uttar Pradesh; he later joined Bharatiya Lok Dal and worked with Charan Singh.
  • 1969- Invalappil Mani Vijayan (or better known as IM Vijayan), Indian Soccer(Football) player, was born in Trissur, Kerala.
    • He was recognised as Indian Player of the Year in 1993, 1997, 1999.
    • He scored the fastest ever International goal against Bhutan at the SAF Games ’99, scoring after just 12 seconds.

You may Like

  1. BPSC Mains Exam Online Application
  2. Daily Current Affairs Quiz 24 April
  3. Current Affairs Quiz – 23 April 
  4. Today’s History – 23 April
  5. Daily Current Affairs 22 April
  6. History of Today 22 April
  7. Current Affairs Quiz 21 April
  8. Today’s History 21 April 
  9. Current Affairs Quiz 20 April
  10. History of 20 April
  11. Daily Current Affairs Quiz – 18 April

Leave a Reply

Your email address will not be published. Required fields are marked *

twelve − 9 =