Last Updated: August 4, 2026
Today in History – August 4 is a date of profound historical significance, marking turning points in international politics, scientific breakthroughs, and cultural milestones. From Britain’s entry into World War I to the operation of Asia’s first nuclear research reactor in India, this day reflects pivotal global events. Furthermore, it marks the birth anniversaries of globally renowned leaders like Barack Obama and legendary literary figures like ‘Karunasri’ Jandhyala Papayya Shastri.
This article covers:
- Major historical events on August 4
- Famous personalities born on August 4
- National and international observances
- Important current affairs and competitive exam facts
Table of Contents
🌟 Top Highlights of August 4
- Outbreak of WWI (1914): Great Britain declared war on Germany following the invasion of Belgium, escalating World War I globally.
- Asia’s First Nuclear Reactor (1956): India’s and Asia’s first nuclear research reactor, ‘Apsara’, achieved criticality at Trombay, Mumbai.
- Birth of Barack Obama (1961): Barack Obama, the 44th President of the United States and the first African-American president, was born on this day.
🗓️ Important Historical Events on August 4
1704 – Capture of Gibraltar
During the War of the Spanish Succession, Anglo-Dutch naval forces captured the Rock of Gibraltar from Spain. Gibraltar subsequently became a vital strategic naval base for the British Royal Navy connecting the Atlantic Ocean and the Mediterranean Sea.
1790 – Foundation of the United States Coast Guard
On the recommendation of Secretary of the Treasury Alexander Hamilton, the United States Revenue Cutter Service was established. This force later evolved into the modern U.S. Coast Guard, which is why August 4 is celebrated as Coast Guard Day.
1914 – Britain Declared War on Germany
German troops invaded neutral Belgium to attack France. In response to the violation of Belgian neutrality guaranteed by the Treaty of London, Great Britain declared war on Germany, formally bringing the British Empire into World War I.
1956 – Asia’s First Nuclear Reactor ‘Apsara’ Attains Criticality
Under the vision of Dr. Homi J. Bhabha, India’s first nuclear research reactor, ‘Apsara’, went critical at the Bhabha Atomic Research Centre (BARC) in Trombay, Mumbai. It was the first nuclear reactor in all of Asia.
1972 – Expulsion of Asians from Uganda
Idi Amin, the President of Uganda ordered the expulsion of around 50,000 Asians (mostly of Indian origin) holding British passports, giving them 90 days to leave the country, creating a massive global refugee crisis..
1984 – Republic of Upper Volta Renamed ‘Burkina Faso’
Under the leadership of revolutionary President Thomas Sankara, the West African nation of Upper Volta was officially renamed Burkina Faso, meaning “Land of Incorruptible People” or “Land of Upright People”.
2020 – Beirut Port Explosion
A massive stockpile of improperly stored ammonium nitrate detonated at the port of Beirut, Lebanon. The blast killed over 200 people, injured thousands, and caused widespread devastation across the city. It became one of the largest non-nuclear explosions in history.
Other Major Events
- 1821: The first issue of The Saturday Evening Post was published in the United States.
- 1947: The Supreme Court of Japan was officially established under the post-WWII Constitution.
- 2007: NASA launched its Phoenix spacecraft toward Mars to investigate the habitability of Martian arctic soil.
🎂 Famous Birthdays on August 4
| Year | Personality | Domain / Notable Achievement |
| 1719 | Johann Gottlob Lehmann | German mineralogist and geologist; pioneer in geological stratigraphy. |
| 1755 | Nicolas-Jacques Conté | French scientist and inventor who patented the modern graphite-clay pencil lead. |
| 1792 | Percy Bysshe Shelley | Iconic English Romantic poet (Ozymandias, To a Skylark). |
| 1868 | Master C.V.V. (K. Venkatarao) | Indian philosopher, yogi, and spiritual guru from Kumbakonam. |
| 1900 | Queen Elizabeth (The Queen Mother) | Queen consort of King George VI and mother of Queen Elizabeth II; turned 100 in 2000. |
| 1912 | Jandhyala Papayya Shastri | Renowned Telugu poet known as ‘Karunasri’, author of Pushpa Vilapamu. |
| 1926 | Mandali Venkata Krishna Rao | Eminent Gandhian, former Andhra Pradesh State Minister, and organizer of first World Telugu Conference in 1975. |
| 1955 | Charles D. “Sam” Gemar | NASA astronaut who flew on Space Shuttle missions STS-38 and STS-48. |
| 1961 | Barack Obama | 44th President of the United States, first African-American president, Nobel Peace Laureate. |
📌 Other Notable Birthdays: Louis Vuitton (1821), French fashion designer and founder of the luxury trunk brand; and Malavika Mohanan (1993), Indian actress and model, were also born on August 4.
🕯️ Notable Death Anniversaries on August 4
- 1875 – Hans Christian Andersen: Renowned Danish author of world-famous fairy tales (The Little Mermaid, The Ugly Duckling).
- 2006 – Nandini Satpathy: First female Chief Minister of Odisha, former Union Minister, and acclaimed Odia writer.
- 2007 – Pagal Adilabadi: Popular Urdu satirical poet hailing from the Telangana region.
- 2020 – Vangapandu Prasada Rao: Co-founder of Praja Natya Mandali, revolutionary poet, and iconic Telugu folk lyricist.
- 2020 – Sunnam Rajaiah: Prominent CPM tribal leader and three-time MLA from Bhadrachalam constituency.
- 2020 – Ebrahim Alkazi: Legendary theatre director, former Director of National School of Drama (NSD), and a recipient of Padma Vibhushan.
📢 National & International Days Observed on August 4
- U.S. Coast Guard Day: Commemorates the creation of the Revenue Cutter Service (Revenue Marine) on August 4, 1790, by Alexander Hamilton, the first U.S. Treasury Secretary.
- National White Wine Day: An annual observance dedicated to celebrating white wine appreciation and culinary pairings.
💡Did You Know?
- The Science Behind the Pencil: The modern pencil lead made of graphite mixed with clay was invented in 1795 by French scientist and aeronaut Nicolas-Jacques Conté, who was born on August 4, 1755.
- Naming of Apsara: When India’s first nuclear reactor attained criticality on August 4, 1956, Prime Minister Jawaharlal Nehru named it ‘Apsara’ (celestial nymph) because of the blue Cerenkov radiation glow visible in the reactor pool water.
- Day Anne Frank Was Captured: August 4, 1944, was the tragic day when the Gestapo raided the secret annex in Amsterdam, capturing 15-year-old Anne Frank, whose diary later inspired millions worldwide.
❓Frequently Asked Questions (FAQs)
Q1: Which was India’s and Asia’s first nuclear research reactor, and when did it go critical?
Ans: ‘Apsara’ was India’s and Asia’s first nuclear research reactor. It achieved criticality on August 4, 1956, at BARC in Trombay, Mumbai.
Q2: Where and when was the 44th U.S. President Barack Obama born?
Ans: Barack Obama was born on August 4, 1961, in Honolulu, Hawaii.
Q3: Which famous Telugu poet held the title ‘Karunasri’, and when was he born?
Ans: Jandhyala Papayya Shastri was popularly known as ‘Karunashree’. He was born on August 4, 1912.
Q4: When was the famous Jewish girl Anne Frank arrested by Nazi secret police?
Ans: Anne Frank and her family were arrested by the Gestapo on August 4, 1944.
Q5: Why did Great Britain declare war on Germany on August 4, 1914?
Ans: Britain declared war on Germany on August 4, 1914, following the German invasion of neutral Belgium during World War I.
Q6: Who was Vangapandu Prasada Rao, and when did he pass away?
Ans: Vangapandu Prasada Rao was a revolutionary folk lyricist, poet, and co-founder of Praja Natya Mandali in Andhra Pradesh. He passed away on August 4, 2020.
Q7: When is World Breastfeeding Week celebrated globally and in India?
Ans: World Breastfeeding Week is celebrated every year from August 1 to August 7.
Q8. Why is U.S. Coast Guard Day celebrated on August 4?
Ans: It marks the establishment of the Revenue Marine in 1790.
Q9. Who developed the modern pencil manufacturing process?
Ans: Nicolas-Jacques Conté.
Q10. What was Burkina Faso formerly known as?
Ans: Upper Volta.