Albert Sidney Johnston ( February 2, 1803 – April 6, 1862 ) served as a general in three different armies: the Texas Army, the United States Army, and the Confederate States Army.

* 1803 – Louisiana Purchase: The United States purchases the Louisiana Territory from France for $ 15 million, more than doubling the size of the young nation.

Louisiana Creole ( also called French Créole ) refers to native born people of the New Orleans area who are descended from the Colonial French and / or Spanish settlers of Colonial French Louisiana, before it became part of the United States in 1803 with the Louisiana Purchase.

In 1803, the United States Army built Fort Dearborn, which was destroyed in the War of 1812, Battle of Fort Dearborn.

The first recorded use of the word cocktail in the United States is said to be in The Farmer's Cabinet on April 28, 1803:

The United States acquired of land from France under the Louisiana Purchase in 1803.

* 1803 – In Marbury v. Madison, the Supreme Court of the United States establishes the principle of judicial review.

In 1803, when the government began to persecute Rapp's followers, he decided to move the entire group to the United States.

When released in 1803, from a brief time in prison, Rapp told his followers to pool their assets and follow him on a journey for safety to the " land of Israel " in the United States, and soon over 800 people were living with him there.

Under the leadership of George Rapp, the group left Württemberg, Germany, and came to the United States in 1803.

Physical force Irish republicanism as an ideology had a long history, from the United Irishmen of the 1798 and 1803 rebellions, to the Young Irelander Rebellion of 1848 and the 1867 rebellion by the Irish Republican Brotherhood.

At the start of his term, Madison was a party to the United States Supreme Court case Marbury v. Madison ( 1803 ), in which the doctrine of judicial review was asserted by the high Court, much to the annoyance of the Jeffersonians who did not want a powerful federalist judiciary.

When Audubon, at age 18, boarded ship for emigration to the United States in 1803, he changed his name to an anglicized form: John James Audubon.

In 1803, his father obtained a false passport so that Audubon could go to the United States to avoid conscription in the Napoleonic Wars.

The Louisiana Purchase ( " Sale of Louisiana ") was the acquisition by the United States of America in 1803 of of France's claim to the territory of Louisiana.

Louisiana remained nominally under Spanish control until a transfer of power to France on November 30, 1803, just three weeks before the cession to the United States.

Although the foreign minister Talleyrand opposed the plan, on April 10, 1803, Napoleon told the Treasury Minister François de Barbé-Marbois that he was considering selling the entire Louisiana Territory to the United States.

The Americans thought that Napoleon might withdraw the offer at any time, preventing the United States from acquiring New Orleans, so they agreed and signed the Louisiana Purchase Treaty on April 30, 1803.

After the signing of the Louisiana Purchase agreement in 1803, Livingston made this famous statement, " We have lived long, but this is the noblest work of our whole lives ... From this day the United States take their place among the powers of the first rank.

The territory's boundaries had not been defined in the 1762 Treaty of Fontainebleau that ceded it from France to Spain, nor the 1800 Third Treaty of San Ildefonso ceding it back to France, nor the 1803 Louisiana Purchase agreement ceding it to the United States.

Category: 1803 in the United States

* 1803 – Napoleonic Wars: The United Kingdom revokes the Treaty of Amiens and declares war on France.

Category: 1803 in United States case law

The extreme northeastern part of New Mexico was originally ruled by France, and sold to the United States as part of the Louisiana Purchase in 1803.

* 1803 – The United States Senate ratifies the Louisiana Purchase.

When the Dutch Republic, during the Napoleonic Wars, was occupied by the French in 1795, henceforth becoming their vassal and enemy of the British, the United Kingdom invaded and occupied the Cape Colony that same year ; relinquished control of the territory in 1803 ; only to return and reoccupy the Cape on 19 January 1806.

The French intervention in the Swiss civil strife, a breach of the Treaty of Lunéville ( 1801 ) between France and the Holy Roman Empire which guaranteed Swiss sovereignty, was taken as a pretext by the United Kingdom to break the peace of Amiens and declare war on France on 18 May 1803.

Control of Osnabrück passed to the Electorate of Hanover in 1803 during the German Mediatisation and then briefly to the Kingdom of Prussia in 1806.

Alexander von Humboldt mentions it in his Political Treatise on the Kingdom of New Spain ( 1803 ), noting that a very strong version of mezcal was being manufactured clandestinely in the districts of Valladolid ( Morelia ), Mexico State, Durango and Nuevo León.

The Bishopric of Halberstadt was likewise mediatised in 1803, and according to the Final Act of the 1815 Vienna Congress, the Oker was the eastern border of the Kingdom of Hanover with the Duchy of Brunswick and the Prussian Province of Saxony.

When the diocese was transferred to Prussia in 1803, the municipal law was reconfirmed, but taken away once more in 1815, when Salzgitter became part of the Kingdom of Hanover.

In 1802 the colonies were returned to the Batavian Republic under the terms of the Treaty of Amiens, but the United Kingdom seized the colonies again less than one year later upon resumption of hostilities with France in the Napoleonic Wars in 1803.

He was also in charge of the preparations against Napoleon's planned invasion of the United Kingdom in 1803.

The Landgrave of Hesse-Kassel was elevated to the Electorate of Hesse and Landgrave William IX was elevated to Imperial Elector during the reorganization of the Empire in 1803, in the midst of the Napoleonic wars, and later occupied by French troops and became part of the Kingdom of Westphalia, which was a French satellite state.

Margrave () Aleksander Ignacy Jan-Kanty Wielopolski ( born 1803 in Sędziejowice, Kraków Department, Duchy of Warsaw, died 1877 in Dresden, Kingdom of Saxony, German Empire ) was a Polish aristocrat, owner of large estates, and the 13th lord of the manor of Pinczów.

The United Kingdom, which had declared war on France in 1803, paid subsidies to Sweden.

Gerrit Parmele Judd ( 1803 – 1873 ) was an American physician and missionary to the Kingdom of Hawaii who later became a trusted advisor and cabinet minister to King Kamehameha III.

In 1803 the town became centre of a district ( Oberamt ), which in 1806 was included into the new Kingdom of Württemberg.

The Tibet affair had postponed a previously planned attack on the Garhwal Kingdom, but by 1803 Raja of Garhwal Pradyuman Shah had also been defeated.

In 1803, the island of Tasmania ( then Van Diemen's Land ) was colonised by United Kingdom of Great Britain and Ireland, who subsequently established the settlement of Hobart Town.

Part of the Kingdom from 1795 to 1809, until 1803 a separate administrative unit

In 1803 he was made Baron Keith, of Banheath in the County of Dumbarton, in the Peerage of the United Kingdom, with remainder to his daughter and only child from his first marriage, Margaret Mercer Elphinstone and the heirs male of her body.

Pōmare I ( c. 1742 – September 3, 1803 ) ( fully in old orthography: Tu-nui-ea-i-te-atua-i-Tarahoi Vairaatoa Taina Pōmare I ; also known as Tu or Tinah or Outu ), was the unifier and first king of Tahiti and founder of the Pōmare dynasty and the Kingdom of Tahiti between 1788?

In 1803 the electorate was occupied by French and Prussian troops, and following the Treaties of Tilsit in 1807, its territories together with territories ceded from Prussia was created into the Kingdom of Westphalia ruled by Napoleon's brother Jérôme Bonaparte.

Category: 1803 establishments in the United Kingdom

* 1803 in the United Kingdom, 1803 in Ireland, 1803 in Wales