Famous people died in 4 April

Hermann Joseph Muller was an American geneticist, who won the 1946 Nobel Prize in Physiology or Medicine

John Venn was a British mathematician, philosopher and logician

Adam Clayton Powell Junior was a well-known pastor, a civil rights activist and a renowned politician of the 20th century United States

Peter Cooper was an American industrialist and inventor who built the first steam locomotive in the U.S

Wilhelm Ostwald was a famous scientist who is credited with discovery of Ostwald Process for manufacture of nitric acid

John Napier was a Scottish mathematician and physicist best known as the inventor of logarithms

Carl Ludwig Siegel is considered to be one of the greatest mathematicians of the 20th century

Roger Ebert was an American film critic for the Chicago Sun-Times and PBS Network, journalist and screenwriter

Martin Luther King Jr

Zulfikar Ali Bhutto served as both the President and Prime Minister of Pakistan