1820 in philosophy

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{{Cite book|last=Warburton|first=Nigel|title=A Little History of Philosophy|publisher=Yale University Press|year=2011|isbn=978-0-300-15208-1|location=New Haven, Connecticut|pages=121–152}}{{Cite book|last=Magee|first=Bryan|title=The Great Philosophers: An introduction to western philosophy|publisher=Oxford University Press|year=1988|isbn=0192822012|location=Great Britain|pages=98–230}}

• Thomas Brown - Lectures on the Philosophy of the Human Mind
• Georg Wilhelm Friedrich Hegel - Grundlinien der Philosophie des Rechts

• 22 January - James Hutchison Stirling, English philosopher (died 1909)N/A, n.d. Stirling, James Hutchison | Internet Encyclopedia Of Philosophy. [online] Iep.utm.edu. Available at: [Accessed 4 April 2020]./
• 27 April – Herbert Spencer, English philosopher and sociologist (died 1903){{Citation |last=Weinstein |first=David |title=Herbert Spencer |date=2024 |work=The Stanford Encyclopedia of Philosophy |editor-last=Zalta |editor-first=Edward N. |url=https://plato.stanford.edu/entries/spencer/ |access-date=2024-12-04 |edition=Summer 2024 |publisher=Metaphysics Research Lab, Stanford University |editor2-last=Nodelman |editor2-first=Uri}}
• 23 June – {{ill|Friedrich Hermann Semmig|de}}, German author and philosopher (died 1897)
• 28 November – Friedrich Engels, German revolutionary, political economist, philosopher, industrialist, and military historian (died 1895)

• 24 March – Jean-Baptiste-René Robinet, French philosopher (born 1735){{Cite journal|url=https://www.oxfordreference.com/view/10.1093/oi/authority.20110803100424612|title=Jean-Baptiste Robinet|website=Oxford Reference|doi=|language=en|access-date=2020-03-31}}
• 2 April – Thomas Brown, Scottish philosopher and doctor (born 1778){{Cite web|url=https://www.britannica.com/biography/Thomas-Brown|title=Thomas Brown {{!}} British physician and philosopher|website=Encyclopedia Britannica|language=en|access-date=2020-04-21}}
• 20 July – {{ill|Mattias Fremling|sv}}, Swedish philosopher (born 1745){{Cite journal|date=1986|title=List of Publications on the Economic and Social History of Great Britain and Ireland|url=https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1468-0289.1986.tb01259.x|journal=The Economic History Review|language=en|volume=39|issue=4|pages=612–651|doi=10.1111/j.1468-0289.1986.tb01259.x|issn=1468-0289|url-access=subscription}}

Image:Herbert Spencer 2.jpg|Herbert Spencer
1820-1903

Image:Engels painting2.jpg|Friedrich Engels
1820-1895

Image:Thomas Brown philosopher.jpg|Thomas Brown
1778-1820

Image:Fremling, Mattias (av Martin David Roth).jpg|Mattias Fremling
1745-1820

{{reflist}}

• [https://www.jstor.org/stable/20130575?seq=1 Laurentiis, A, 2005, "Metaphysical Foundations of the History of Philosophy: Hegel's 1820 Introduction to the "Lectures on the History of Philosophy", The Review of Metaphysics, vol. 59, no. 1, pp. 3–31]

Category:1820

Category:Philosophy by year

Category:19th century in philosophy