Explore 169 historical events from 1800–1809.
New Hampshire is a state in the New England region of the Northeastern United States. It borders Massachusetts to the south, Vermont to the west, Maine and the Gulf of Maine to the…
New Hampshire approves the Twelfth Amendment to the United States Constitution, ratifying the document
Robert Baldwin was an Upper Canadian lawyer and politician who with his political partner Louis-Hippolyte Lafontaine of Lower Canada, led the first responsible government ministry …
Robert Baldwin, Canadian lawyer and politician, third Premier of West Canada (died 1858)
Maria Amalia was duchess of Parma, Piacenza and Guastalla by marriage to Ferdinand I, Duke of Parma. She was born an archduchess of Austria as the daughter of Empress Maria Theresa…
Maria Amalia, Duchess of Parma (born 1746)
Meriwether Lewis was an American explorer, soldier, politician, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition, also known as the…
Led by Meriwether Lewis and William Clark, the Corps of Discovery left Camp Dubois near present-day Hartford, Illinois,
Alexander von Nordmann was a Finnish biologist, who contributed to zoology, parasitology, botany and paleontology.
Alexander von Nordmann, Finnish biologist and paleontologist (died 1866)
L'Aigle is a L6 meteorite that fell on 26 April 1803 over L'Aigle, Lower Normandy, France, during a meteor shower. Before the event, it was generally believed that meteorites were …
Thousands of meteor fragments fall from the skies of L'Aigle, France; the event convinces European scientists that meteo
The Louisiana Purchase was the acquisition of the territory of Louisiana by the United States from the French First Republic in 1803. This consisted of most of the land in the Miss…
Louisiana Purchase: The United States purchases the Louisiana Territory from France for $15 million, more than doubling
The Napoleonic Wars (1803–1815) were a global series of conflicts fought by a fluctuating array of European coalitions against the French First Republic (1803–1804) under the First…
Napoleonic Wars: The United Kingdom revokes the Treaty of Amiens and declares war on France
Edward George Earle Lytton Bulwer-Lytton, 1st Baron Lytton, GCMG, PC was an English writer and politician. He served as a Whig member of Parliament from 1831 to 1841 and a Conserva…
Edward Bulwer-Lytton, English author, playwright, and politician, Secretary of State for the Colonies (died 1873)
Ralph Waldo Emerson, who went by his middle name Waldo, was an American essayist, lecturer, philosopher, minister, abolitionist, and poet who led the Transcendentalist movement of …
Ralph Waldo Emerson, American poet and philosopher (died 1882)
The Haitian Revolution, also known as the Haitian War of Independence, was a successful insurrection by enslaved Africans against French colonial rule in Saint-Domingue, now the so…
Haitian Revolution: The Royal Navy led by Rear-Admiral John Thomas Duckworth commence the blockade of Saint-Domingue aga
Albrecht Theodor Emil Graf von Roon was a Prussian soldier and statesman. As Minister of War from 1859 to 1873, Roon, along with Otto von Bismarck and Helmuth von Moltke, was a dom…
Albrecht von Roon, Prussian soldier and politician, 10th Minister President of Prussia (died 1879)
James Clarence Mangan, born James Mangan, was an Irish poet. He freely translated works from German, Turkish, Persian, Arabic, and Irish, with his translations of Goethe gaining sp…
James Clarence Mangan, Irish poet and author (died 1849)
Justus Freiherr von Liebig was a German scientist who made major contributions to the theory, practice, and pedagogy of chemistry, as well as to agricultural and biological chemist…
Justus von Liebig, German chemist and academic (died 1873)
Juan Nepomuceno Almonte Ramírez was a Mexican soldier, commander, minister of war, congressman, diplomat, presidential candidate, and regent. The natural son of Catholic cleric Jos…
Juan Almonte, son of José María Morelos, was a Mexican soldier and diplomat who served as a regent in the Second Mexican
L'Aigle is a L6 meteorite that fell on 26 April 1803 over L'Aigle, Lower Normandy, France, during a meteor shower. Before the event, it was generally believed that meteorites were …
Thousands of meteor fragments fell over L'Aigle, France, becoming a milestone in the understanding of meteorites
The Louisiana Purchase was the acquisition of the territory of Louisiana by the United States from the French First Republic in 1803. This consisted of most of the land in the Miss…
The United States purchased France's claim to the Louisiana Territory for 80 million francs, or less than US$
The Law of 20 May 1802 was a decree passed by First Consul Napoleon of the French First Republic on 20 May 1802 that reinstated slavery. It decreed the reinstatement and continuati…
By the Law of 20 May 1802, Napoleon Bonaparte reinstates slavery in the French colonies, revoking its abolition in the F
Charles Emmanuel IV was King of Sardinia and ruler of the Savoyard states from 16 October 1796 until 1802, when he abdicated in favour of his brother Victor Emmanuel I.
King Charles Emmanuel IV of Sardinia abdicates his throne in favor of his brother, Victor Emmanuel
Heinrich Gustav Magnus was a German experimental scientist. His training was mostly in chemistry but his later research was mostly in physics. He spent the great bulk of his career…
Heinrich Gustav Magnus, German chemist and physicist (died 1870)
Harriet Martineau was an English social theorist. She wrote from a sociological, holistic, religious and feminine angle, translated works by Auguste Comte, and, rare for a woman wr…
Harriet Martineau, English sociologist and author (died 1876)
The Wahhabi sack of Karbala occurred on 21 April 1802, under the rule of Abdulaziz bin Muhammad Al Saud, the second ruler of the Emirate of Diriyah, where approximately 12,000 Wahh…
Twelve thousand Wahhabis sack Karbala, killing over three thousand inhabitants
Napoleon Bonaparte, later known by his regnal name Napoleon I, was Emperor of the French from 18 May 1804 until his first abdication in 1814, with a brief restoration during the Hu…
Napoleon Bonaparte signs a general amnesty to allow all but about one thousand of the most notorious émigrés of the Fren
Washington, D.C., officially the District of Columbia and commonly known as simply Washington or D.C., is the capital city and federal district of the United States. The city is on…
Washington, D