1910, 4th April: Philosopher Sri Aurobindo arrived at Pondicherry where he opened a Yoga and spiritual center.
1944, 4th April: World War II, a bombing of Bucharest, Romania, by British and American forces killed 3,000 civilians.
1949, 4th April: Eleven countries in Western Europe together with the United States, established NATO.
1968, 4th April: James Earl Ray assassinated Martin Luther King Jr.
1968, 4th April: Apollo Program – NASA launched Apollo 6.
1975, 4th April: Bill Gates and Paul Allen founded Microsoft in Albuquerque, New Mexico.
1990, 4th April: Lata Mangeshkar honored with Dadasaheb Phalke Award.
2013, 4th April: In Thane, Maharashtra, 74 people were killed when an illegally constructed building collapsed.
1823: Carl Wilhelm Siemens, a German-British electrical engineer, and businessman.
1889: Pandit Makhanlal Chaturvedi, an Indian poet, writer, essayist, playwright, and journalist.
1902: Narayanrao Vyas, a Hindustani musician of Gwalior Gharana.
1928: Maya Angelou, an American poet, memoirist, and civil rights activist.
1949: Parveen Babi, an Indian film actress.
1965: Robert Downey Jr., an American actor, and producer.
1970: Parvathy Jayaram, a former Indian film actress, costume designer, and classical dancer
1617: John Napier, Scottish mathematician, and father of the logarithm table.
1911: Sachchidananda Hirananda Vatsyayan, Agyeya, an Indian writer, poet, novelist, literary critic, journalist, translator, and revolutionary in the Hindi language.
1929: Carl Benz, founder of the Mercedes-Benz Company.
1931: Andre Michelin, a French industrialist.
1968: Martin Luther King Jr., an American Christian minister, and activist.
1979: Zulfikar Ali Bhutto, the 9th Prime Minister of Pakistan.