Philosophy · Science · Politics · 1806–1873

John Stuart Mill — Age, Birthday & Biography

Born: 20 May 1806 · Died: 8 May 1873 · Age: 66

English philosopher of On Liberty and Utilitarianism who campaigned in Parliament for women's right to vote

Did you know?In the mid-nineteenth century, he became the first person in the British Parliament to officially call for women to have the vote.

Quick facts

  • Date of birth20 May 1806
  • Date of death8 May 1873
  • Age at death66
  • Cause of deathErysipelas
  • NationalityBritish
  • BirthplaceLondon Borough of Islington, United Kingdom
  • Occupationphilosopher, economist, politician

Editor's Take:

John Stuart Mill was one of the most important liberal thinkers of the 19th century. His father educated him intensely at home; he learned Greek at three. The strain led to a breakdown in his twenties, from which poetry helped him recover. His essay On Liberty argues that people should be free to do as they wish unless they harm others. He developed utilitarianism, the idea of the greatest happiness for the greatest number. As an MP he called for votes for women. He wrote The Subjection of Women with ideas shared with Harriet Taylor.

Key Milestones

  1. 1843: A System of Logic – first major work
  2. 1848: Political Economy – textbook
  3. 1859: On Liberty – famous essay
  4. 1863: Utilitarianism – essay

John Stuart Mill (20 May 1806 – 7 May 1873) was an English philosopher, political economist, and politician. He was a paradigmatic philosopher of liberalism and has been described as "the most influential English-speaking philosopher of the nineteenth century" by the Stanford Encyclopedia of Philosophy.

Text from Wikipedia, licensed under CC BY-SA 4.0

Profile

John Stuart Mill: The Champion of Liberty

British philosopher and economist, 1806–1873

John Stuart Mill was born in London on 20 May 1806.

Educated intensively by his father, he was reading Greek by the age of three.

His books On Liberty, Utilitarianism and The Subjection of Women shaped liberal thought.

Career highlights

  1. 1843A System of Logic: first major work
  2. 1848Political Economy: textbook
  3. 1859On Liberty: famous essay
  4. 1863Utilitarianism: essay
  5. 1865MP for Westminster: elected
  6. 1869The Subjection of Women: book

Did you know?He worked for over thirty years at the East India Company in London.

Age at death
66
Years since death
153

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When is John Stuart Mill's birthday?
John Stuart Mill's birthday is May 20. He was born on May 20, 1806 in London Borough of Islington, United Kingdom.
How old was John Stuart Mill when he died?
John Stuart Mill died on May 8, 1873, aged 66.
Who shares a birthday with John Stuart Mill?
Famous people who share John Stuart Mill's May 20 birthday include Honoré de Balzac, Cher, Sigrid Undset, José Mujica and Iker Casillas.

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Reviewed by the Who Shares My Birthday editorial team.

Last reviewed: October 2026