* 1802 — Gian Domenico Romagnosi notes that a nearby voltaic pile deflects a magnetic needle.

* 1802 — William Hyde Wollaston observes dark lines in the solar spectrum

János Bolyai ( pronounced ) ( December 15, 1802 – January 27, 1860 ) was a Hungarian mathematician, one of the founders of non-Euclidean geometry — a geometry that differs from Euclidean geometry in its definition of parallel lines.

The Spanish presence returned with the California mission system, and the area was part of Rancho Topanga Malibu Sequit — a land grant — in 1802.

It was granted its royal charter of trade — amounting to official township — in 1802.

* Versuch einer allgemeinen-deutschen Synonymik ( Halle and Leipzig, 1795 – 1802, six volumes, fourth edition 1852 – 1853 ) — an abridgment was published by the author in one large volume ( Halle, 1802 )

This took place in 1802 — Hall lost its territory and its political independence and became a Oberamtsstadt ( seat of an Oberamt, comparable to a county ).

Émile de Girardin ( 22 June 1802 in Paris — 27 April 1881 in Paris ), was a French journalist, publicist, and politician.

* September 12 — Charles Dickson Archibald, lawyer, businessman and politician ( born 1802 )

The Abbey — destroyed by Normans in 882, and rebuilt, then entirely re-built in the 1680s, secularised in 1802, bombed in World War II and since largely demolished — was one of the oldest in western Europe.

* the Surrey Iron Railway, linking Wandsworth and Croydon ( 1801 – 1802 ), arguably the world's first public railway — albeit horse-drawn

* 1802 — 586

* in Nepal since 1802, accredited to the Hindu Kings ( title Maharajadhiraja ), since 15 March 1816 exercising a de facto protectorate — the last staying on 1920 as Envoy till the 1923 emancipation

The Russian assignats of 1802 — 1803.

His father, Léon Halévy ( 1802 – 1883 ), was a civil servant and a clever and versatile writer, who tried almost every branch of literature — prose and verse, vaudeville, drama, history — without, however, achieving decisive success in any.

* Johann Andreas Graeffer ( 1 January 1746 — 7 August 1802 ) botanist and nurseryman remembered by garden historians as having introduced a number of exotic plants to British gardens and to have worked for the king of Naples at the Palace of Caserta.

Sir Edwin Henry Landseer, RA ( 7 March 1802 – 1 October 1873 ) was an English painter, well known for his paintings of animals — particularly horses, dogs and stags.

* Second British occupation, August 23, 1793 – 18 June 1802 — Treaty of Amiens ( 1802 )

Out of office, Monroe returned to practicing law in Virginia until elected governor there as a Republican, his first term serving from 1799 to 1802.

The term binary was first used in this context by Sir William Herschel in 1802, when he wrote:

The term " epidemiology " appears to have first been used to describe the study of epidemics in 1802 by the Spanish physician Villalba in Epidemiología Española.

In an 1802 publication, he became one of the first to use the term biology in its modern sense.

In 1802 Lamarck published Hydrogéologie, and became one of the first to use the term biology in its modern sense.

In this Congress, Class 1 meant their term began in this Congress, requiring reelection in 1802 ; Class 2 meant their term ended with this Congress, requiring reelection in 1798 ; and Class 3 meant their term began in the last Congress, requiring reelection in 1800.

In this Congress, Class 1 meant their term began in the last Congress, requiring reelection in 1802 ; Class 2 meant their term began in this Congress, requiring reelection in 1804 ; and Class 3 meant their term ended with this Congress, requiring reelection in 1800.

In this Congress, Class 1 meant their term ended with this Congress, requiring reelection in 1802 ; Class 2 meant their term began in the last Congress, requiring reelection in 1804 ; and Class 3 meant their term began in this Congress, requiring reelection in 1806.

He had intended to go to the bar, but in the October term of 1802 he chanced to hear Charles Simeon speaking of the good done in India by a single missionary, William Carey, and some time afterwards he read the life of David Brainerd, a missionary to the Native Americans.

In the many decades since Jean-Baptiste de Lamarck, a pioneering biologist and evolutionist, first conceptualized and coined the category " Invertebrata " ( between 1793 and 1801 ) and the term " Biology " ( in 1802 ), zoology has come to recognize that the non-vertebrate category is not a scientifically valid, monophyletic taxon.

The term biology in its modern sense appears to have been introduced independently by Thomas Beddoes ( in 1799 ), Karl Friedrich Burdach ( in 1800 ), Gottfried Reinhold Treviranus ( Biologie oder Philosophie der lebenden Natur, 1802 ) and Jean-Baptiste Lamarck ( Hydrogéologie, 1802 ).

He took his seat on January 8, and was re-elected on January 27 for a full term ( 1801 – 07 ), but resigned on February 5, 1802.

So effective was Bayard in opposing Jefferson's government that all out effort was made by the Democratic-Republicans to unseat him in his attempt at a fourth term in 1802.

Hamilton in 1802, Hudson in 1847, and Macdonald in 1989 have used the term ‘ Murmi ’ for Tamang people.

McFarlan stood for election to Congress in 1802, but was unsuccessful ; he ran again in 1804 and served one term, in the 9th United States Congress ( March 4, 1805 – March 3, 1807 ).

The first two years of Garrard's second term were relatively uneventful, but in the 1802 General Assembly, legislators approved two bills related to the circuit court system that Garrard vetoed.

Bamberg thus lost its independence in 1802, becoming part of Bavaria in 1803.

Beginning in 1802, Napoleon sent more than 20, 000 troops to try to restore slavery on the island, as its colonial sugar cane plantations had been the chief revenue producer for France in the New World.

* 1802 – By the Law of 20 May 1802, Napoleon Bonaparte reinstates slavery in the French colonies, revoking its abolition in the French Revolution

After sending more than 20, 000 troops to try to regain the colony in 1802, France withdrew its 7, 000 surviving troops in late 1803, shortly before Haiti declared independence.

* May 20 – By the Law of 20 May 1802, Napoleon Bonaparte reinstates slavery in the French colonies, revoking its abolition in the French Revolution.

By this time Genesee County had been reduced considerably in size from its original area of 1802, still containing the present Orleans and Wyoming Counties in addition to its present area, however.

Forkel wrote his biography in 1802, more than 60 years after the events related, and its accuracy has been questioned.

Alfred Beckley ( 1802 – 1888 ) said he gave Raleigh County its name in honor of Sir Walter Raleigh ( 1552 – 1618 ), the “ enterprising and far-seeing patron of the earliest attempts to colonize our old Mother State of Virginia ,” according to Raleigh County: West Virginia by Jim Wood.

Salem became a small settlement serving travelers on the Great Wilderness Road ( roughly the same path followed by US-11 and later Interstate 81 today ) and was officially founded in 1802, receiving its charter in 1806.

Georgia had made a treaty with the Federal Government in 1802 to relinquish its Western Territory for the removal of all Indians within its boundaries, and, although other tribes had been removed, little was ever done about the Cherokees.

From 1802 to 1901, the Fairfield Academy offered secondary and higher education at its campus in the hamlet of Fairfield.

Williamson was created in 1802 from the Town of Sodus and originally was much larger than its present-day borders.

* the Salongebäude, built in 1802 by Severin ; its festival hall is the best-preserved Classicist interior in Bad Doberan ;

" Although there were mills and houses in the Gap in the late 1700s, the town of Hillsboro ( spelled Hillsborough until its 1880 incorporation ) was not formally established until December 31, 1802 by an act passed by the Virginia General Assembly.

The British North West Company built its inland headquarters at Grand Portage ; the post was active until 1802.

Although its earliest settlements date back to 1802, the village that came to be known as Dublin didn't begin to take shape until the arrival of the Sells family of Huntingdon, Pennsylvania.

The three English artists credited with establishing watercolor as an independent, mature painting medium are Paul Sandby ( 1730 – 1809 ), often called " the father of the English watercolor ", Thomas Girtin ( 1775 – 1802 ), who pioneered its use for large format, romantic or picturesque landscape painting, and Joseph Mallord William Turner ( 1775 – 1851 ), who brought watercolor painting to the highest pitch of power and refinement and created with it hundreds of superb historical, topographical, architectural and mythological paintings.