Born in Stockholm, Alfred Nobel was the fourth son of Immanuel Nobel ( 1801 – 1872 ), an inventor and engineer, and Andriette Ahlsell Nobel ( 1805 – 1889 ).

* 1801 – Joseph Lanner, Austrian composer and conductor ( d. 1843 )

* 1783 – Grand Duchess Alexandra Pavlovna of Russia ( d. 1801 )

* 1801 – First Barbary War: The American schooner captures the Tripolitan polacca Tripoli in a single-ship action off the coast of modern-day Libya.

* 1801 – Guillaume Groen van Prinsterer, Dutch politician ( d. 1876 )

* Alexander I of Russia ( 1801 – 1825 ), Emperor of Russia

* 1801 – Antoine Augustin Cournot, French mathematician ( d. 1877 )

** April 1798 – November 1801 Jakob Emmanuel Feer ( b. 1754 – d. 1833 )

* 1713 – Nicola Sala, Italian composer and music theorist ( d. 1801 )

* 1801 – Noël François de Wailly, French lexicographer ( b. 1724 )

After the defeat of the French Campaign in the Battle of the Nile, in 1801, the British Museum acquired more Egyptian sculpture and in 1802 King George III presented the Rosetta Stone – key to the deciphering of hieroglyphs.

* Frédéric Bastiat ( 1801 – 1850 ), classical-liberal author and political economist

#* Zénaïde Laetitia Julie Bonaparte ( 1801 – 1854 )

#** Charles Lucien Jules Laurent Bonaparte ( 1803 – 1857 ), ornithologist and politician married Princess Zénaïde Bonaparte ( 1801 – 1854 )

#* Prince Achille Murat ( 1801 – 1847 ), married Catherine Willis Gray ( 1803 – 1867 ), great-grandniece of George Washington.

Brigham Young (; June 1, 1801 – August 29, 1877 ) was an American leader in the Latter Day Saint movement and a settler of the Western United States.

* 2 Kings of Etruria ( 1801 – 1807 )

** Louis ( 1801 – 1803 )

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

* War of the Oranges, a brief 1801 conflict between the Kingdom of Portugal and the joint forces of Spain and Napoleonic France

Before the French Revolution it had as suffragan sees Carpentras, Vaison and Cavaillon, which were united by the Napoleonic Concordat of 1801 to Avignon, together with the Diocese of Apt, a suffragan of Aix-en-Provence.

Britain would actually conquer St. Thomas, St. John, and St. Croix in March 1801 through the Napoleonic wars, but they restored them by the Treaty of Amiens in March 1802.

At times during the Napoleonic Wars, the islands were occupied by the British ; first from March 1801 to March 27, 1802, and then again from December 1807 to November 20, 1815, when they were returned to Denmark.

For the Napoleonic French state, the French triangulation was extended by Jean Joseph Tranchot into the German Rhineland from 1801, subsequently completed after 1815 by the Prussian general Karl von Müffling.

In 1801 the clerical states were dissolved, and Prussia gained the region, only to lose it again in the Napoleonic Wars.

He was then appointed consul at Algiers and Smyrna ( 1798 ), was kept prisoner by the Ottoman Empire for three years ( during the Napoleonic Wars ), and then he subsequently became préfet of the départment of Mont-Tonnerre ( 1801 ) and commissary-general of the three départments on the left bank of the Rhine.

During the Napoleonic Wars, in 1801 and again in 1807, the British Navy attacked Copenhagen.

During the Napoleonic Wars, the fortress was the prison of many French prisoners, including the writer and diplomat Francois Pouqueville, who was detained there for more than two years ( 1799 to 1801 ) and who gave an extensive description of the fortress in his Voyage en Morée, à Constantinople, en Albanie, et dans plusieurs autres parties de l ' Empire Othoman, pendant les années 1798, 1799, 1800 et 1801.

It came from the Abbey of Herckenrode ( now in Belgium ) in 1801 having been purchased by Brooke Boothby when that Abbey was dissolved during the Napoleonic Wars.

The illegitimate son of the landgrave ( later elector ) of Hesse-Kassel, William I and Rebecca Richter, a Jewish woman, he entered the Austrian army as an infantry officer in 1801 and saw much service in the Napoleonic wars.

At the first French census in 1801, the Seine department had 631, 585 inhabitants ( 87 % of them living in the city of Paris, 13 % in the suburbs ) and was the second most populous department of the vast Napoleonic Empire ( behind the Nord department ), more populous than even the dense departments of what is now Belgium and the Netherlands.

It pictured the battle led by Admiral Horatio Nelson, part of the English attack on Copenhagen ( Battle of Copenhagen ( 1801 )) during the Napoleonic wars, which reached its high point on April 2, 1801.

* Second League of Armed Neutrality, existed from 1800 to 1801 during the Napoleonic Wars

* 1801 – French Revolutionary Wars: British Royal Navy ships inflict heavy damage against Spanish and French ships in the Second Battle of Algeciras.

At the beginning of 1801, during the French Revolutionary Wars, Britain's principal advantage over France was its naval superiority.

After resupplying in Baltimore, Sterett sailed Enterprise to the Barbary Coast in June, 1801 as part of a force under Commodore Richard Dale, in the first stages of the Barbary Wars.

The French Revolutionary Wars are usually divided between those of the First Coalition ( 1792 – 1797 ) and the Second Coalition ( 1798 – 1801 ).

* Blanning, T. C. W., The French Revolutionary Wars, 1787 – 1801.

Bombardment of Algiers ( 1816 ) | Bombardment of Algiers on August 1816 by the History of the Royal Navy | British Royal Navy, commanded by Edward Pellew, 1st Viscount Exmouth | Lord Exmouth and painted by Thomas Luny. Conflicts between the Barbary States and the newly independent United States of America culminated in the First ( 1801 – 1805 ) and Second ( 1815 ) Barbary Wars.

It was introduced into Australia around 1885, and was sometimes described as a " Tyrolean " import, derived from the black " Corsican hat " ( Korsehut ) with a feather and a leather chinstrap ; this hat with an upturned brim was worn by the fifteen battalions of Austrian light troops formed in 1801 after the French Revolutionary Wars.

The United States Navy was founded, in part, to counter the activities of the Barbary pirates, and the United States fought the First and Second Barbary Wars ( 1801 – 1805, 1815 ) to end this threat to its shipping.

During the Barbary Wars ( 1801 – 07 ) Porter was 1st lieutenant of, and and was taken prisoner when Philadelphia ran aground in Tripoli harbor October 31, 1803.

The French Revolutionary Wars continued in 1801 with the French bringing the war against the Second Coalition to a close.

In the reorganization of the Holy Roman Empire in the course of the French Revolutionary Wars, much of Further Austria, including the Breisgau, was by the 1801 Treaty of Lunéville granted as compensation to Ercole III d ' Este, former duke of Modena and Reggio, who however died two years later.

In Scandinavia it is seen as the later stage of the English Wars, whose commencement is accounted as the First Battle of Copenhagen in 1801.

* Charles Stuart ( British Army officer ) ( 1753 – 1801 ), British general during the French Revolutionary Wars

He was one of the main leaders in the Polygar Wars and commanded a vast army, notably during the Second Polygar War that took place in 1801 – 1802.