All Thinkers

Thinkers Timeline

Key thinkers across history — grouped by era, colour-coded by discipline. Click any card to explore ideas, quotations, and classroom contexts.

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Early Modern — 1500 to 1800
Modern — 1800 to 1950
Harriet Martineau 1802-1876 · United Kingdom
Harriet Martineau was an English writer and social theorist. Many scholars now call her the first woman sociologist. She was born on 12 June 1802 in Norwich, England. Her family were Unitarians, a religious group that valued education for girls and liberal ideas. She was the sixth of eight children. From around the age of twelve she began to lose her hearing. By her twenties she was almost completely deaf. She used an ear trumpet (a kind of early hearing aid) for the rest of her life. Her father's cloth business failed before he died in 1826. The family lost most of its money. Most women of her class would have become governesses or wives. Martineau's deafness made teaching hard. She chose to write for a living instead. She succeeded. By the 1830s she was one of the most famous writers in Britain. In 1832-34 she published Illustrations of Political Economy. This was twenty-five short story books that taught economic ideas to ordinary readers. The series sold hugely. Queen Victoria invited her to her coronation in 1838. In 1834-36 she travelled around the United States. She met abolitionists, attended anti-slavery meetings, and wrote Society in America (1837). This book made her enemies in the American South. She kept writing for forty more years. She produced sociology, history, novels, children's books, travel writing, and around 1,600 newspaper articles. She died on 27 June 1876, aged 74, at her home in the English Lake District. Her Autobiography was published the next year.
"Readers are plentiful: thinkers are rare."
Virginia Woolf 1882-1941 · England
Virginia Woolf was an English novelist, essayist, and literary critic. She is one of the most important writers of the 20th century. She was born Adeline Virginia Stephen on 25 January 1882 in London. Her father, Leslie Stephen, was a famous editor and critic. Her mother, Julia, was a model for pre-Raphaelite painters. The household was full of books and writers. It was also full of suffering. Virginia's mother died when she was 13. Her half-sister died two years later. Her father died when she was 22. She had her first serious mental breakdown after each of these losses. She was taught at home. Unlike her brothers, she was not sent to school or university. She later wrote sharply about this unequal education. She read everything in her father's library. She began writing as a young woman. After her father's death, she moved with her siblings to the Bloomsbury area of London. There she was part of a circle of writers, artists, and thinkers known as the Bloomsbury Group. They believed in honest talk, personal freedom, and taking art seriously. In 1912, she married Leonard Woolf, a writer and political thinker. Together, in 1917, they founded the Hogarth Press, which published her own books and those of other important writers, including T.S. Eliot and translations of Freud. Her major novels appeared between the two world wars: Mrs Dalloway (1925), To the Lighthouse (1927), Orlando (1928), The Waves (1931), and Between the Acts (1941). She also wrote important essays: A Room of One's Own (1929) and Three Guineas (1938). She suffered from serious mental illness throughout her life. Her letters and diaries describe periods of depression and what was then called 'madness'. As the Second World War threatened England, and with Germany bombing London, her mental state worsened. On 28 March 1941, she filled her coat pockets with stones and walked into the River Ouse near her home in Sussex. She was 59. Her suicide note to Leonard said she could not face another breakdown.
"A woman must have money and a room of her own if she is to write fiction."
George Orwell 1903-1950 · England
George Orwell was the pen name of Eric Arthur Blair, an English writer, journalist, and essayist. He is one of the most quoted writers of the 20th century. He was born on 25 June 1903 in Motihari, in the Bengal region of British India. His father worked for the British colonial government. His mother brought him back to England when he was a small child. He grew up in modest circumstances in what he later called the 'lower-upper-middle class'. He won scholarships to good English schools, ending up at Eton, one of the most elite schools in the country. He did not do well there academically. Instead of going to university, in 1922 he sailed to Burma (now Myanmar) and joined the Indian Imperial Police. He served for five years. What he saw changed his life. He watched British officers beat and humiliate Burmese people. He took part in colonial rule himself. He came to hate it. In 1927, he left the police, returned to England, and began writing. For years he was poor. He lived with tramps in London, washed dishes in Paris, picked hops in Kent, and taught in small schools. This experience became the material for his first books, Down and Out in Paris and London (1933) and The Road to Wigan Pier (1937). In 1936, he went to Spain to fight against the fascist forces in the Spanish Civil War. He was shot in the throat by a sniper. His account of the war, Homage to Catalonia (1938), is one of the great books of 20th-century political writing. He spent the Second World War in London, working for the BBC and writing. His two most famous books came in his last years. Animal Farm (1945) was a satire on the Soviet Union. Nineteen Eighty-Four (1949) was a novel about totalitarian rule. He had tuberculosis throughout these years. He died in London on 21 January 1950, aged 46, soon after finishing Nineteen Eighty-Four.
"All animals are equal, but some animals are more equal than others."
Christopher Hitchens 1949 - 2011 · United Kingdom (later United States)
Christopher Hitchens was a British-American journalist, essayist, and writer. He was one of the most famous public intellectuals of the late 20th and early 21st centuries. He wrote about politics, literature, religion, and many other subjects. He was known for sharp arguments, beautiful prose, and a willingness to take unpopular positions. He was born in 1949 in Portsmouth, on the south coast of England. He came from a middle-class British military family. His father was a navy officer. His mother was Jewish, though he only learned this as an adult. He studied philosophy, politics, and economics at Oxford from 1967. He was active in left-wing student politics. After university he became a journalist. He wrote for left-wing magazines including the New Statesman. In 1981 he moved to the United States. He wrote a regular column for The Nation, a major American left-wing magazine, for nearly 20 years. He became an American citizen in 2007. He wrote for many other publications including Vanity Fair, The Atlantic, and Slate. He was prolific. He wrote 17 books and thousands of articles. For most of his career, he was on the political left. He was a friend of writers like Salman Rushdie, Martin Amis, and Ian McEwan. After the September 11 attacks in 2001, his politics shifted. He supported the Iraq war in 2003. Many of his old left-wing friends saw this as betrayal. He defended his position fiercely. In 2007 he published God Is Not Great, an aggressive attack on religion. The book made him one of the New Atheists alongside Richard Dawkins, Sam Harris, and Daniel Dennett. He was diagnosed with oesophageal cancer in 2010. He continued writing about his illness with extraordinary honesty. He died in December 2011, aged 62.
"What can be asserted without evidence can also be dismissed without evidence."