Mandatory use of decimal time was officially suspended 7 April 1795, although some cities continued to use decimal time as late as 1801.

In this way he accomplished the unity of the island, which was only carried out for a short period of time by Toussaint Louverture in 1801.

" Jefferson took the oath of office on March 4, 1801, at a time when partisan strife between the Democratic-Republican and Federalist parties was growing to alarming proportions.

At around the same time, Zanabazar also developed the Horizontal square script, which was only rediscovered in 1801.

This led to so much delay in its acceptance that by the time it was to be implemented ( in 1801 ) the re-federalisation of the state by the new Staatsbewind regime was already underway.

Rabbi Zecharias Frankel ( 1801 – 1875 ) at one time was in the traditional wing of the nascent Reform Judaism movement.

In 1801 the first great school of dermatology became a reality at the famous Hôpital Saint-Louis in Paris, while the first textbooks ( Willan's, 1798 – 1808 ) and atlases ( Alibert's, 1806 – 1814 ) appeared in print during the same period of time.

Horry County was incorporated in 1801 and at that time had an estimated population of 550 and since it was completely surrounded by water which forced the inhabitants to survive virtually without any assistance from the " outside world ", which caused them to become an extremely independent populace and named there " The Independent Republic of Horry ".

Cicott was familiar with the area because of his time trading up and down the Wabash River, starting around 1801.

Founded in 1801 as a New England Academy, Woodstock Academy briefly closed twice in the 19th century, and the second time was revived by local philanthropist and Academy graduate Henry C. Bowen.

Three panels depicting Hawking in England from various time periods, as reprinted in Joseph Strutt ( engraver and antiquary ) | Joseph Strutt's 1801 book, The sports and pastimes of the people of England from the earliest period.

After the departure of French troops in 1801 Mamluks continued their struggle for independence, this time against the Ottoman Empire and Great Britain.

In 1801 Tieck went to Dresden, then lived for a time at Ziebingen near Frankfurt ( Oder ), and spent many months in Italy.

He served from March 4, 1801, until August 7, 1805, when he resigned again, this time to accept an appointment as the Attorney General of the United States under President Thomas Jefferson.

He found time, however, to execute his collation of the Harleian manuscript of the Odyssey, published in the Grenville Homer in 1801, and to present to the Society of Antiquaries his conjectural restoration of the Rosetta stone.

By the time of the 1801 census the population was 284.

At the time of the first national census in 1801 Nuneaton was already one of the largest towns in Warwickshire, with a population of 5, 000.

By the time he published another three-volume work in 1801, entitled Voyage dans la Haute-Pensylvanie et dans l ' état de New-York, however, his fame had faded and the damages of the French Revolution and its aftermath had made people less interested in the United States.

Every year he exhibited work of one class or another: occasionally a public monument in the round, like those of Pasquale Paoli ( 1798 ) or Captain Montague ( 1802 ) for Westminster Abbey, of Sir William Jones for University College, Oxford ( 1797 – 1801 ), of Nelson or Howe for St Paul's Cathedral ; more often memorials for churches, with symbolic Acts of Mercy or illustrations of Scripture texts, both commonly in low relief ( 1801 ), Miss Cromwell, Chichester ( 1800 ), Mrs Knight, Milton, Cambridge ( 1802 ), and many more ; and these pious labours he would vary from time to time with a classical piece like those of his earliest predilection.

Although the Federalists had more Senators during the very brief March 1801 special session, by the time the first regular session met in December 1801, the Democratic-Republicans had gained majority control.

From Gottingen ( 1801 ) where he stayed for 10 days, he wrote, `` The first question asked everywhere is about galvanism.

Probably the first linear and continuous assembly process of post-Renaissance times were the Portsmouth Block Mills built between 1801 and 1803.

From being a mere village in an agricultural district at the beginning of the 19th century, the place grew rapidly in population owing to the abundance of coal and iron ore, and the population of the whole parish, 1, 486 in 1801, increased tenfold during the first half of the 19th century.

The first Burns club, known as The Mother Club, was founded in Greenock in 1801 by merchants born in Ayrshire, some of whom had known Burns.

He entered the Kriegsakademie ( also cited as " The German War School ," the " Military Academy in Berlin ," and the " Prussian Military Academy ") in Berlin in 1801 ( age 21 ), studied the writings of the philosopher Immanuel Kant, and won the regard of General Gerhard von Scharnhorst, the future first chief of staff of the new Prussian Army ( appointed 1809 ).

Gauss also made important contributions to number theory with his 1801 book Disquisitiones Arithmeticae ( Latin, Arithmetical Investigations ), which, among things, introduced the symbol ≡ for congruence and used it in a clean presentation of modular arithmetic, contained the first two proofs of the law of quadratic reciprocity, developed the theories of binary and ternary quadratic forms, stated the class number problem for them, and showed that a regular heptadecagon ( 17-sided polygon ) can be constructed with straightedge and compass.

After three months of intense work, he predicted a position for Ceres in December 1801 — just about a year after its first sighting — and this turned out to be accurate within a half-degree when it was rediscovered by Franz Xaver von Zach on 31 December at Gotha, and one day later by Heinrich Olbers in Bremen.

Early croquet-like game from The Sports and Pastimes of the people of England, first published 1801.

Norway's first nominative, complete census was taken in 1801, when Norway still was ruled by the Oldenburg dynasty of Denmark-Norway.

The first four censuses ( 1801 – 1831 ) were mainly headcounts and contained little personal information.

*: 1801: Joseph Marie Jacquard invents the Jacquard loom, the first machine to use punched cards to control a sequence of operations.

They named their first son George Washington Adams ( 1801 – 1829 ) after the first president.

* 1801 – French astronomer Jean-Louis Pons made his first comet discovery.

Following the Egyptian campaign of 1798 – 1801, Napoléon appointed the museum's first director, Dominique Vivant Denon.

Georges Cuvier first suggested that pterosaurs were flying creatures in 1801, and coined the name " Ptero-dactyle " in 1809 for the specimen recovered in Germany.

The Academy was not pleased, and as a countermeasure Johan Erik Rydqvist ( 1800 – 1877 ) published the first edition of SAOL in 1874, based on the orthography in Leopold's work of 1801.

The first census held throughout the UK was organised in 1801.

The first Census in 1801 revealed that the population of Great Britain was 10. 5 million.

Under Chief Justices Jay, Rutledge, and Ellsworth ( 1789 – 1801 ), the Court heard few cases ; its first decision was West v. Barnes ( 1791 ), a case involving a procedural issue.

In 1913 he also became the first president to deliver the State of the Union address in person since 1801 when Thomas Jefferson discontinued this practice.

* January 1 – Frederick Muhlenberg, first speaker of the United States House of Representatives ( d. 1801 )

He was doomed, however, to disturbance in his studies, first from the death of his mother, next from his inveterate tendency towards poetry, and finally from the First Battle of Copenhagen in April 1801, which, however, inspired a dramatic sketch ( April the Second 1801 ) which is the first thing of the kind by Oehlenschläger that we possess.