Lewis Henry Morgan ( 1818 – 1881 ), a lawyer from Rochester, New York, became an advocate for and ethnological scholar of the Iroquois.

* 1818 – Aasmund Olavsson Vinje, Norwegian poet ( d. 1870 )

* 1818 – Lucy Stone, American activist ( d. 1893 )

* 1818 – Maria Mitchell, American astronomer ( d. 1889 )

* 1818 – The United States Senate ratifies the Rush-Bagot Treaty, establishing the border with Canada.

* Alexander II of Russia ( 1818 – 1881 ), emperor of Russia

* Alexander II of Russia ( 1818 – 1881 ), Emperor of Russia

* 1739 – Agostino Accorimboni, Italian composer ( d. 1818 )

* 1818 – Alexander H. Rice, American politician, 30th Governor of Massachusetts ( d. 1895 )

Adolph Wilhelm Hermann Kolbe ( September 27, 1818 – November 25, 1884 ) was a German chemist.

* 1818 – Marie of Saxe-Altenburg ( d. 1909 )

The Treaty of 1818 established joint U. S. – British occupancy of territory west of the continental divide to the Pacific Ocean.

Four more children followed: Charlotte, ( 1816 – 1855 ), Patrick Branwell ( 1817 – 1848 ), Emily, ( 1818 – 1848 ) and Anne ( 1820 – 1849 ).

* 1818 – In the Battle of Maipú, Chile's independence movement – led by Bernardo O ' Higgins and José de San Martín – win a decisive victory over Spain, leaving 2, 000 Spaniards and 1, 000 Chilean patriots dead.

* 1818 – The case of Ashford v Thornton ends, with Abraham Thornton allowed to go free rather than face a retrial for murder, after his demand for trial by battle is upheld.

People starting with John Oxley in 1817, 1818 and 1821, followed by Charles Sturt in 1829 – 1830 attempted to follow the westward-flowing rivers to find an " inland sea ", but these were found to all flow into the Murray River and Darling River which turn south.

#** Alexandrine Marie Bonaparte ( 1818 – 1874 )

He passed the examination in the elements of mathematics and the theory of navigation at the Royal Naval Academy on 2 – 4 September 1816, and became a 1st Lieutenant on 1 September 1818.

In eight years of active service as an officer, he served two and a half years in a surveying ship in the Mediterranean ( 1818 – 21 ), one and a half years in a surveying sloop in the English Channel and off the coast of Ireland ( 1823 – 24 ), and one and a half years as Surveyor of the frigate during a voyage ( 1824 – 26 ) to and from the Hawaiian Islands ( then known as the " Sandwich islands ").

One of the earliest accounts relating to a large unknown freshwater animal was in 1818, when Hamilton Hume and James Meehan found some large bones at Lake Bathurst in New South Wales.

It is named after the English physicist James Prescott Joule ( 1818 – 1889 ).

Artisan missionary envoys from the London Missionary Society began arriving in 1818 and included such key figures as James Cameron, David Jones and David Griffiths, who established schools, transcribed the Malagasy language using the Roman alphabet, translated the Bible, and introduced a variety of new technologies to the island.

* October 11 – James Prescott Joule, English physicist ( b. 1818 )

* October 20 – James Anthony Froude, English historian ( b. 1818 )

* September 9 – James Carr ( Massachusetts politician ), U. S. Congressman ( d. 1818 )

Robert Tannahill wrote the words in 1805 and James Barr composed the music in 1818.

* 1818 – James Blundell performs the first successful human blood transfusion

Robert Brown described a subset of Terebintaceae called Cassuvlæ or Anacardeæ in 1818, using the herbarium that was collected by Christen Smith during a fated expedition headed by James Kingston Tuckey to explore the River Congo.

It was named for James Gadsden of South Carolina, who served as Andrew Jackson's aide-de-camp in Florida in 1818.

The son of Benjamin Joule ( 1784 – 1858 ), a wealthy brewer, and Alice Prescott Joule, James Prescott Joule was born in the house adjoining the Joule Brewery in New Bailey Street, Salford 24 December 1818.

In 1818, Calhoun approved an expedition to build a military outpost near the present site of Bismarck, North Dakota on the Yellowstone River ; Johnson awarded the contract to his brother James.

Along with Brown County, it is one of Wisconsin's original counties, established by the Michigan Territorial legislature in 1818, and named after William H. Crawford, James Monroe's Treasurer at the time.

It was formed from Monongalia County in 1818 and named for Virginia Governor James Patton Preston.

President James Monroe on April 30, 1818, issued a proclamation authorizing the sale of lands in Missouri after its survey.

The county was officially organized on December 14, 1818, and was named after President James Madison.

With the Regent's backing, Nash created a master plan for the area, put into effect from 1818 onwards, which stretched from St James ’ s northwards and included Regent Street, Regent's Park ( 1809 – 1832 ) and its neighbouring streets, terraces and crescents of elegant town houses and villas.

Colfax was laid out on 22 March 1880 by James E. Wood ( 22 October 1818 – October 1908 ).

The Hardy family, better known later through descendant Lieutenant Governor of Kentucky James Greene Hardy who died in office in 1856, and for whom nearby Hardyville was named, played an important role in establishing the city, especially over 1816 through 1818, and continuing well into the 1840s.

It was incorporated on February 19, 1818 ( or 1819 ), following a petition made in November 1816 by James Leach and 37 others.

In 1818, James Johnson, who settled at today's Johnson Corners, built a hotel.

During the depression of 1818, he was saved from financial ruin by the counsel of James Ross, a noted lawyer and former senator.

The town was established in 1818 by James Britton Bailey.

Among the rhyming weavers were James Campbell ( 1758 – 1818 ), James Orr ( 1770 – 1816 ), Thomas Beggs ( 1749 – 1847 ), David Herbison ( 1800 – 1880 ), Hugh Porter ( 1780 – 1839 ) and Andrew McKenzie ( 1780 – 1839 ).