Title: History of Oklahoma
Content: of Louisiana in the secret Third Treaty of San Ildefonso. But, strained by obligations in Europe, Napoleon Bonaparte decided to sell the territory to the United States. With the Louisiana Purchase in 1803, the United States acquired France's 828,000 square mile claim to the watersheds of the Mississippi River (west of the river) and Missouri River. The purchase encompassed all or part of 15 current U.S. states] (including all of Oklahoma) and parts of two Canadian provinces. Out of the Louisiana Purchase, Louisiana Territory and Orleans Territory were organized. Orleans Territory became the state of Louisiana in 1812, and Louisiana

Title: History of Arkansas
Content: not disrupt commerce. Napoleon Bonaparte's conquest of Spain shortly after the American Revolution forced the Spanish to cede Louisiana, including Arkansas, to the French via the Third Treaty of San Ildefonso in 1800. England declared war on France in 1803, and Napoleon sold his land in the new world to the United States, today known as the Louisiana Purchase. The size of the country doubled with the purchase, and a stream of new White settlers led to a changed dynamic between Native Americans and Arkansans. Prior to the Louisiana Purchase, the relationship between the two groups was a "middle ground"

Title: Spanish Texas
Content: 1799 Spain gave Louisiana back to France, and in 1803 Napoléon Bonaparte (First Consul of the French Republic) sold the territory to the United States of America as part of the Louisiana Purchase, U.S. President Thomas Jefferson (in office: 1801-1809) insisted that the purchase included all land to the east of the Rocky Mountains and to the north of the Rio Grande, although its large southwestern expanse lay within New Spain. The territorial ambiguity remained unresolved until the Adams–Onís Treaty compromise in 1819, when Spain ceded Spanish Florida to the United States in return for recognition of the Sabine River

Title: Spanish Fort (Colorado)
Content: French Republic with the secret Third Treaty of San Ildefonso. Napoléon then sold La Louisiane to the United States with the Louisiana Purchase Treaty of 1803. The United States maintained the claim of France to the entire Mississippi basin, while Spain asserted its claim to the southwestern portion of the basin. In 1806, a U.S. Army reconnaissance expedition led by Captain Zebulon Pike explored the upper Arkansas River. In January 1807, the expedition left the upper Arkansas Valley and crossed the treacherous snow-covered Sangre de Cristo Range into the San Luis Valley, the undisputed territory of Santa Fe de Nuevo

Title: James Bowie
Content: bought a plantation in Arkansas. Bowie and his brother John were involved in a major court case in the late 1820s over land speculation. When the United States purchased the Louisiana Territory in 1803, it promised to honor all former land grant claims, and for the next 20 years efforts were made to establish who owned what land. In May 1824, Congress authorized the superior courts of each territory to hear suits from those who claimed they had been overlooked. The Arkansas Superior Court received 126 claims in late 1827 from residents who claimed to have purchased land in former

Question: What country sold land including the present-day states of Louisiana, Arkansas, and Oklahoma to the USA in 1803?
Answer: France