Timeline April 1755

Events in April 1755 5

• 1755 Rousseau publishes Discourse on Inequality "Discourse on the Origin and Basis of Inequality Among Men" appears in Europe Jean-Jacques Rousseau published his second major discourse, arguing that social inequality arose from the invention of private property and the development of civil society. The work became a foundational text of Enlightenment political thought and influenced later revolutionary ideas.
• 1755 – 1843 Samuel Hahnemann (1755-1843) Died 2 July 1843, aged 88 Samuel Hahnemann was a German physician who founded homeopathy, based on the principle that like cures like. He spent his last years practising in Paris, where he died.
• 1755 – 1824 James Parkinson (1755-1824) Died 21 December 1824, aged 69 English surgeon and geologist who, in his 1817 "Essay on the Shaking Palsy," gave the first detailed medical description of the condition later named Parkinson's disease in his honor. He also wrote on paleontology and was involved in radical politics earlier in his life.
• 1755 Johnson's Dictionary of the English Language published Samuel Johnson's landmark dictionary appeared after nine years of work Samuel Johnson published "A Dictionary of the English Language" in London, a work he had compiled largely single-handedly over nine years. It set a new standard for English lexicography through its use of illustrative literary quotations and remained the preeminent English dictionary for over a century.
• 1755 – 1842 Élisabeth Vigée Le Brun (1755-1842) Died 30 March 1842, aged 86 French painter Élisabeth Vigée Le Brun was one of the leading portraitists of the late eighteenth century. She was best known as the court painter of Marie Antoinette. After the Revolution she worked across Europe and painted hundreds of portraits.