Establishments
- July 20, 1820 – Saint Cronan's Boys National School opens in Bray, Co. Wicklow, Ireland under the title Bray Male School. It is the oldest school in Bray and its notable past pupils include the former President of Ireland, Cearbhall Ó Dálaigh.
- 1820: Indiana University is founded as the Indiana State Seminary and renamed the Indiana College in 1846, to later be renamed Indiana University.
- February 9, 1821 – The George Washington University is chartered as The Columbian College of the District of Columbia by President Monroe.
- June 27, 1821 – The New Hampton School is founded in the United States state of New Hampshire.
- September 18, 1821 – Amherst College is founded in Massachusetts.
- August 12, 1822 – St David's College (now the University of Wales, Lampeter) is founded by Bishop Thomas Burgess.
- November 13, 1822 – founding of the Congregation of St. Basil
- June 5, 1823 – Raffles Institution, then the Singapore Institution, was founded by the founder of Singapore, Sir Stamford Raffles.
- 1823 – Jackson Male Academy, precursor of Union University, is founded in Tennessee.
- 1823 – The Oxford Union is founded.
- January 24, 1824 – The Westminster Review, No1. is published.
- June 16, 1824 – Society for the Prevention of Cruelty to Animals is established in Great Britain.
- October 10, 1824 – The Edinburgh Town Council makes a decision to found the Edinburgh Municipal Fire Brigade, the first fire brigade in Britain.
- November 5, 1824 – Rensselaer Polytechnic Institute (the first technological university in the English-speaking world) is founded in Troy, New York.
- December 24, 1824 – The First American Fraternity, Chi Phi (ΧΦ), is founded at Princeton University.
- 1824 – The Cimetière du Montparnasse is established in Paris, France.
- September 1825 – The Lady Margaret Boat Club is founded by 12 members of St John's College, Cambridge.
- 1825 – The City of Brisbane is founded (see History of Brisbane).
- 1825 – The United States Postal Service started a dead letter office.
- February 11, 1826 – University College London is founded, under the name University of London.
- February 13, 1826 – The American Temperance Society is founded.
- March 16, 1827 – Freedom's Journal, the first African-American owned and published newspaper in the United States, is founded in New York City by John Russwurm.
- 1827 – Egypt: Cairo University School of Medicine is established as the first African medical school in the Middle East.
- 1827 – J. J. Audubon begins publishing Birds of America.
- April 11, 1828 – Bahía Blanca is founded.
- June 1, 1829 – The Philadelphia Inquirer is founded as The Pennsylvania Inquirer.
- October 1, 1829 – South African College inaugurated in Cape Town.
- 1829 – King's College London is founded under the patronage of King George IV and the Prime Minister The Duke of Wellington. It will become the third official university in England.
- 1829 – The Chalmers University of Technology is founded in Gothenburg.
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