· Constitutional change
Union of Scotland and England, 1707
The Kingdoms of Scotland and England were united as Great Britain, with one Parliament, from 1 May 1707.
Dated events from published cases, in chronological order. Dates keep their real precision; a period filter includes any event whose date range overlaps it.
675 events.
· Constitutional change
The Kingdoms of Scotland and England were united as Great Britain, with one Parliament, from 1 May 1707.
In: Scotland
· Administrative change
After the War of the Spanish Succession, Philip V abolished Catalonia’s own public law and institutions.
In: Catalonia
· Conflict episode
Fighting between American and British forces from 1775 to 1783 caused a disputed toll of casualties, including roughly 6,800 American combat deaths, about 17,000 further American deaths from disease, and 43,633 British military deaths.
In: United States
· Declaration
The Continental Congress adopted the Declaration of Independence on 4 July 1776, declaring the thirteen United Colonies free and independent states.
In: United States
· Constitutional change
The Articles of Confederation, drafted and submitted to the states on 15 November 1777, were ratified by all thirteen states when Maryland approved them on 1 March 1781, taking effect the same day as the first US constitution.
In: United States
· Agreement
Great Britain formally acknowledged the independence of the United States in the Treaty of Paris, signed 3 September 1783, ending the Revolutionary War.
In: United States
· Conflict episode
An uprising of enslaved people beginning in August 1791, led at various stages by figures including Toussaint Louverture, developed into a war for independence against France; published casualty estimates vary widely, with figures cited between roughly 200,000 and 350,000 total deaths.
In: Haiti
· Declaration
Jean-Jacques Dessalines proclaimed Haitian independence from France at Gonaïves on 1 January 1804, following the Haitian Revolution, with assembled generals swearing to renounce France forever.
In: Haiti
· Conflict episode
Between early February and 22 April 1804, Jean-Jacques Dessalines ordered the killing of the remaining white population of Haiti.
In: Haiti
· Conflict episode
Miguel Hidalgo y Costilla launched the independence struggle with the "Cry of Dolores" on 16 September 1810; after his 1811 execution José María Morelos led a second phase until his own 1815 execution, and the war continued until 1821. Published casualty estimates vary widely, from roughly 250,000 to 600,000 total deaths.
In: Mexico
· Other
New England Federalist delegates debated secession amid War of 1812 grievances, but chose a moderate constitutional-amendment path instead.
· Administrative change
King John VI returned to Portugal in February 1821, leaving his son Pedro as regent of Brazil; when the Portuguese Côrtes demanded in January 1822 that Pedro also return, he refused, precipitating the crisis that led to the September 1822 proclamation of independence.
In: Brazil
· Agreement
Agustín de Iturbide proclaimed the Plan of Iguala on 24 February 1821, advocating an independent constitutional monarchy; he and Spanish viceroy Juan O'Donojú signed the Treaty of Córdoba on 24 August 1821, ratifying the plan and providing for the withdrawal of Spanish forces.
In: Mexico
· Declaration
Following the entry of the Army of the Three Guarantees into Mexico City, the Supreme Provisional Government Junta declared Mexico a sovereign and independent nation on 28 September 1821, signed by 33 board members and Agustín de Iturbide.
In: Mexico
· Conflict episode
Portuguese garrisons in Bahia, Cisplatina, Maranhão and Pará resisted Brazilian sovereignty until 1823-24; published casualty estimates for the war vary, ranging from roughly 3,000 to over 6,000 dead.
In: Brazil
· Declaration
Prince Regent Pedro proclaimed Brazilian independence from Portugal on the banks of the Ipiranga Brook near São Paulo on 7 September 1822, becoming Emperor Pedro I the following month.
In: Brazil
· Agreement
King Charles X of France issued a Royal Ordinance on 17 April 1825 granting Haiti "full independence" of its government in exchange for a 150-million-franc indemnity to former French colonists, backed by a French naval squadron.
In: Haiti
· Agreement
Portugal formally recognised Brazil as an independent empire in the Treaty of Rio de Janeiro, signed 29 August 1825 and entering into force that November, following British mediation.
In: Brazil
· Declaration
Rebels declared an independent republic during the Ragamuffin War, later defeated and reintegrated.
· Agreement
Spain formally recognised Mexico as a "free, sovereign, and independent nation" in the Santa María–Calatrava Treaty, signed in Madrid on 28 December 1836, fifteen years after Mexico's declaration.
In: Mexico
· Declaration
General Sutherland proclaimed a Sovereign State of Zulia during the Federal War, later defeated and reincorporated.
· Other
The Russian Empire's conquest of the Western Caucasus culminated in the mass expulsion of the Circassian population, an event later characterized by many scholars and some governments as genocide, a term Russia's government rejects.
· Administrative change
Japan formally abolished the Ryukyu Kingdom and annexed it as Okinawa Prefecture.
· Agreement
Chile annexed Rapa Nui under a treaty committing to respect Rapa Nui land rights and chiefly authority.
· Other
A colonial-era border divided Pashtun-populated territory, later rejected by Afghanistan and cited by Pashtunistan advocates.
· Other
US-backed businessmen overthrew Queen Liliʻuokalani, an act the sovereignty movement regards as illegal.
· Other
The British South Africa Company defeated and dissolved the historical Ndebele Kingdom.
· Administrative change
The historical Mosquito Reserve was formally incorporated into Nicaragua, ending the earlier self-government arrangement.
· Conflict episode
Cuban insurgents fought Spanish colonial rule from 1895; General Valeriano Weyler's reconcentration policy forced hundreds of thousands of civilians into camps, causing a disputed death toll variously estimated between roughly 95,000 and 300,000.
In: Cuba
· Agreement
Spain relinquished sovereignty over Cuba in the Treaty of Paris, signed 10 December 1898, ending the Spanish-American War; Cuba was placed under US military government rather than granted immediate independence.
In: Cuba
· Declaration
US military government of Cuba ended on 20 May 1902, when the Republic of Cuba was established under President Tomás Estrada Palma.
In: Cuba
· Declaration
The Storting declared that King Oscar II had ceased to function as King of Norway, thereby asserting that the personal union with Sweden was dissolved, a position confirmed by referendum that August.
In: Norway
· Agreement
Following negotiations at Karlstad, Sweden recognised Norwegian independence on 26 October 1905, formally dissolving the union.
In: Norway
· Referendum or popular consultation
A referendum on 12-13 November 1905 decided Norway's form of government by 259,563 votes for a monarchy to 69,264 for a republic; Prince Carl of Denmark had insisted on this referendum before he would accept the throne, and he was formally offered it on 18 November, becoming King Haakon VII.
In: Norway
· Declaration
The Senate of Finland presented a declaration of independence from Russia, asserting Finland's place "as an independent nation at the side of other peoples of the world," which Parliament approved on 6 December 1917.
In: Finland
· Recognition
The Council of People's Commissars of Soviet Russia recognised Finnish independence, a decision confirmed by the All-Russian Central Executive Committee, becoming the first state to recognise Finland.
In: Finland
· Recognition
Sweden and France recognised Finnish independence on 4 January 1918, and Germany followed on 6 January 1918.
In: Finland
· Conflict episode
The Finnish Civil War, fought between the Reds and the German- and Swedish-backed Whites from 27 January to 15 May 1918, caused a disputed total of roughly 36,000-38,000 deaths, including thousands of executions and prison-camp deaths after the fighting ended.
In: Finland
· Declaration
The Council of Lithuania unanimously proclaimed the restoration of an independent state of Lithuania, with Vilnius as its capital, on 16 February 1918, signed by all twenty Council members.
In: Lithuania
· Declaration
The Estonian Salvation Committee proclaimed an independent and democratic Republic of Estonia in the Manifesto to the Peoples of Estonia, published 24 February 1918, amid the withdrawal of Russian and advance of German forces during the First World War.
In: Estonia
· Declaration
The People's Council of Latvia proclaimed Latvia an independent, sovereign, democratic republic on 18 November 1918, electing Jānis Čakste as its Chairman and Kārlis Ulmanis as first Prime Minister.
In: Latvia
· Conflict episode
The IRA waged a guerrilla war against British Crown forces from January 1919 to the July 1921 truce; published casualty figures vary, with roughly 491 IRA and 506 Crown Force deaths cited alongside 919 civilian deaths logged across the wider 1917-1921 period.
In: Ireland
· Other
An unofficial local plebiscite found overwhelming support for union with Sweden, but the vote had no legal effect.
In: Åland Islands
· Declaration
A short-lived, unrecognized Ingrian Finnish breakaway state on the Karelian Isthmus, ended by the Treaty of Tartu.
In: Ingria
· Declaration
A short-lived unrecognized monarchy under Uzun-Hajji claiming authority over Dagestan and the wider North Caucasus during the Russian Civil War.
· Agreement
South Africa received a League of Nations mandate over South West Africa on 17 December 1920 and, after refusing to place the territory under UN Trusteeship following the Second World War, continued to administer it; the International Court of Justice ruled in 1971 that this continued occupation was illegal.
In: Namibia
· Constitutional change
The Polish Sejm granted the newly formed Silesian Voivodeship a broad autonomy statute, including its own parliament.
· Agreement
The peace treaty with the Ottoman government provided for Kurdish local autonomy and a conditional route to independence; it never took effect.
· Other
A Naqshbandi-led uprising against Soviet rule that briefly controlled much of mountainous Dagestan before being suppressed.
· International resolution
The League Council awarded sovereignty over Åland to Finland, conditioned on guarantees for Swedish language and culture and on demilitarisation.
In: Åland Islands