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 ").

Mary Shelley employs the epistolary form in her novel Frankenstein ( 1818 ).

One of the first writers of science fiction was Mary Shelley, whose novel Frankenstein ( 1818 ) dealt with the asexual creation of new life, a re-telling of the Adam and Eve story.

Mary Shelley's Frankenstein ; or, the Modern Prometheus ( 1818 ) has come to define Gothic fiction in the Romantic period.

This occasion was productive of both Mary Shelley's Frankenstein ( 1818 ) and Polidori's The Vampyre ( 1819 ).

The Gothic tradition continued in the 19th century, in such works as Mary Shelley's Frankenstein ( 1818 ), Edgar Allan Poe's short stories, the works of Sheridan Le Fanu, Robert Louis Stevenson's Strange Case of Dr Jekyll and Mr Hyde ( 1886 ), Oscar Wilde's The Picture of Dorian Gray ( 1890 ), and Bram Stoker's Dracula ( 1897 ).

He was the eldest of four surviving children ; his younger siblings were George ( 1797 – 1841 ), Thomas ( 1799 – 1818 ), and Frances Mary " Fanny " ( 1803 – 1889 ).

In particular, he was regarded in the Romantic era as embodying the lone genius whose efforts to improve human existence could also result in tragedy: Mary Shelley, for instance, gave The Modern Prometheus as the subtitle to her novel Frankenstein ( 1818 ).

Mary Shelley's 1818 novel Frankenstein is subtitled " The Modern Prometheus ", in reference to the novel's themes of the over-reaching of modern man into dangerous areas of knowledge.

) Brian Aldiss has argued that Mary Shelley's Frankenstein ( 1818 ) was the first work of science fiction.

She was the second oldest of seven children — Guelma Penn ( 1818 – 1873 ), Hannah Lapham ( 1821 – 1877 ), Daniel Read ( 1824 – 1904 ), Mary Stafford ( 1827 – 1907 ), Eliza Tefft ( 1832 – 1834 ), and Jacob Merritt ( 1834 – 1900 ).

* July 16 – Mary Todd Lincoln, First Lady of the United States ( b. 1818 )

Mary Shelley states in the introduction that in 1818 she discovered, in the Sibyl's cave near Naples, a collection of prophetic writings painted on leaves by the Cumaean Sibyl.

Mary Shelley's novel Frankenstein ( 1818 ), as another important Gothic novel as well as being an early example of science fiction.

* Lady Emily Mary FitzGerald ( 1752 – 1818 ), married Charles Coote, Baron Coote of Coolony and Earl of Bellamont.

Four of his daughters ( of whom the youngest, Mary, married Charles Cowden Clarke ) were gifted singers ; but the most famous was Clara Novello ( 1818 – 1908 ), whose beautiful high soprano and pure style made her one of the greatest vocalists, in opera as well as in oratorio and on the concert stage, from 1833 onwards.

They had five children: Meriwether Lewis Clark, Sr. ( 1809 – 1881 ), named after his friend and expedition partner ; William Preston Clark ( 1811 – 1840 ); Mary Margaret Clark ( 1814 – 1821 ); George Rogers Hancock Clark ( 1816 – 1858 ), named after Clark's older brother ; and John Julius Clark ( 1818 – 1831 ), named after his oldest brother Jonathan and Clark's wife.

After his return the following year, on August 5, 1818, Lisa married the widow Mary Hempstead Keeny, a sister of his friend, the attorney Edward Hempstead.

After his return from that year's expedition, on August 5, 1818 Lisa married the widow Mary Hempstead Keeny ( a sister of Edward Hempstead ).

His life of Mary, Queen of Scots, was first published in 1818.

Brown was influenced by these writers and in turn exerted an influence on them and their younger studiers, for example in Godwin's later novels, or in the work of Percy Bysshe Shelley and Mary Shelley, who reread Brown as she wrote her novels Frankenstein ; or, The Modern Prometheus ( 1818 ) and The Last Man ( 1826 ).

Mary Ann ( née Todd ) Lincoln ( December 13, 1818 – July 16, 1882 ) was the wife of the 16th President of the United States, Abraham Lincoln, and was First Lady of the United States from 1861 to 1865.

Mary Butters ( 1807 – 1839 ), also referred to as the " Carnmoney Witch ", was put on trial for murder in March 1818.

He met Mary Riddle whom he married on December 10, 1818, and the couple had two children.

It may be significant, however, that she was taken ill at about the same time — according to Mary Shelley's journal she was ill on 27 December — and that her journal of June 1818 to early March 1819 has been lost.