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What happened in 1804?

14 events across 5 world regions, each with its sources.

Europe

  • Industrial Revolution

    1760–1820Manchester, England

    A transition in manufacturing processes that began in Great Britain around the 1760s and spread to continental Europe and the United States by about 1840. It was marked by the replacement of human and animal power with machinery and of handicraft with factory production, signaling a historic shift from agrarian to industrial society.

    SourcesWikipedia ↗

  • Napoleonic Wars

    1803–1815Paris, France

    The Napoleonic Wars were a series of global military conflicts from 1803 to 1815 between the First French Empire and shifting coalitions of European powers. Originating in the political upheavals following the French Revolution, the wars primarily took place in Europe but extended to the Middle East, Asia-Pacific, and beyond. They are divided into seven major campaigns, including the War of the Third Coalition and the Peninsular War. Napoleon was ultimately defeated, the French Empire dissolved, and the European balance of power restored.

    SourcesWikipedia ↗

  • Caucasian War

    1763–1864Caucasus

    The Caucasian War was a 19th-century conflict of conquest by the Russian Empire against various peoples of the North Caucasus, lasting from 1817 to 1864. Imam Shamil led fierce resistance, repeatedly repelling Russian attacks, until the fall of Gunib and his capture in 1859. The war ended with the final subjugation of the Circassians and the annexation of the region in 1864.

    SourcesWikipedia ↗

  • Outbreak of the Russo-Persian War (1804–1813)

    1804–1813North Caucasus

    In 1804, war broke out between the Persian Qajar dynasty and the Russian Empire over territorial disputes including Georgia. The newly enthroned Persian king Fath Ali Shah sought to consolidate Persia's northernmost territories, while Russian Tsar Alexander I was equally determined to control the disputed regions. The conflict ended in 1813 with the Treaty of Gulistan, forcing Persia to cede vast territories.

    SourcesWikipedia ↗

  • Outbreak of the Russo-Circassian War

    1711–1864Circassia

    In 1763, the Russian Empire invaded Circassia and occupied Mozdok, prompting the Circassian people to organize a resistance movement to preserve their independence, marking the beginning of the Russo-Circassian War. This conflict became the longest war in the history of the Caucasus and of Russia, ending in 1864 with the defeat of Circassian forces.

    SourcesWikipedia ↗

  • Establishment of Père Lachaise Cemetery

    1804

    Père Lachaise Cemetery was established around the early 19th century on the outskirts of Paris (now in the 20th arrondissement). It is the first garden cemetery and the first municipal cemetery in Paris, covering over 43 hectares, making it the largest cemetery within the city limits. The cemetery contains about 70,000 burial plots, including those of many famous figures, and attracts over 3.5 million visitors annually, ranking among the most renowned cemeteries in the world.

    SourcesWikipedia ↗

  • Construction of the Pont des Arts begins

    1804

    In the early 19th century, construction begins on a cast-iron pedestrian bridge across the Seine in Paris, named Pont des Arts. It links the Institut de France and the central square of the Palais du Louvre, and is the first metal bridge in the French capital.

    SourcesWikipedia ↗

  • Founding of Collège Stanislas de Paris

    1804

    Collège Stanislas de Paris was founded by Abbé Claude Rosalie Liautard in 1804 in the Notre-Dame-des-Champs district of Paris. It is a private Catholic school that later became one of the largest private schools in France.

    SourcesWikipedia ↗

Central & South America

  • Haitian Revolution

    1791–1804Cap-Haïtien

    The Haitian Revolution was a slave uprising in the French colony of Saint-Domingue from 1791 to 1804, overthrowing French colonial rule and establishing the first independent republic ruled by Black people.

    SourcesWikipedia ↗

  • 1804 Haitian Massacre

    1804

    The 1804 Haitian massacre was a genocide ordered by Jean-Jacques Dessalines against the remaining white French colonists in Haiti, following the Haitian Declaration of Independence. From February to late April 1804, Afro-Haitian soldiers killed thousands of French men, women, and children across the country, with death toll estimates ranging from 3,000 to 7,000. The massacre marked a violent end to the Haitian Revolution, eliminating most of the European population and profoundly shaping Haiti's post-colonial society and international relations.

    SourcesWikipedia ↗

  • Construction of Clarence House at English Harbour

    1804World Heritage

    Clarence House was built in English Harbour, Antigua, as the residence of the naval commissioner, primarily to entertain visiting officials. It later became the country home of the Governor of Antigua, hosting figures like Winston Churchill and Princess Diana. Part of the UNESCO World Heritage Site of Antigua Naval Dockyard, the building was later damaged by hurricanes and restored in the 21st century.

    SourcesWikipedia ↗

North Africa

  • First Barbary War

    1801–1805

    Between 1801 and 1805, the United States fought a war against Ottoman Tripolitania, which had declared war over American refusal to continue paying tribute for protection against piracy. It was the first major American war outside the New World.

    SourcesWikipedia ↗

West Asia

  • White Mosque of Nazareth

    1804

    The White Mosque is situated in the Mosque Quarter at the center of Nazareth's Old Market in Israel. It is the oldest mosque in the city and features a pencil-shaped minaret, cream-coloured walls, and a green dome, exemplifying the Ottoman architecture common throughout Nazareth.

    SourcesWikipedia ↗

North America

  • Consecration of the Cathedral of the Holy Trinity, Quebec

    1804World Heritage

    In 1804, the Cathedral of the Holy Trinity was consecrated in Quebec City, becoming the first Anglican cathedral outside the British Isles. Belonging to the newly formed Diocese of Quebec, its construction had begun in 1800, marking the expansion of the Anglican Church in North America.

    SourcesWikipedia ↗

Around 1804

These are known only to the century, not to the year. They are listed separately so a rough date is never mistaken for an exact one.

  • Emergence of the Enlightenment

    c. 16011900Western Europe

  • Museum Island construction begins

    c. 18011900

  • Completion of Dom Pedro V Theatre

    c. 18011900

  • Establishment of Tomioka Silk Mill and Related Industrial Heritage

    c. 18011900

  • Construction of Hôtel Solvay begins

    c. 18011900

  • Founding of Kulangsu as an International Settlement

    c. 18011900

  • Construction of the Four Hydraulic Boat Lifts on the Canal du Centre begins

    c. 18011900

  • Founding of Nelson's Dockyard

    c. 18011900