Between 1780 and 1783 Allen participated, along with his brother Ira, Vermont Governor Thomas Chittenden, and others, in negotiations with Frederick Haldimand, the governor of Quebec, that were ostensibly about prisoner exchanges, but were really about establishing Vermont as a new British province and gaining military protection for its residents.

Between 1780 and 1830, the Haida turned their aggression towards European and American traders.

Between 1869 and 1921, the estuary was crossed by the Solway Junction Railway on a 1780 m ( 5850 ft ) iron viaduct ( Edgar and Sinton, 1990 ).

Between 1780 and 1807, several new towns were created at the boundaries between Litchfield County and other counties in Connecticut.

Between 1780 and 1807, several more towns were established along the northern boundary of New Haven County, resulting in the alteration of the limits of the county.

Between 1780 and 1782 he built his own palace there, the Wallmodenschloss ( also called Wallmodenpalais ) to house his antiquities collection.

Between 1780 and 1820, the first settlers were joined by others coming from the Attakapas Territory, from the Pointe Coupée Territory, and east from the Atchafalaya River area.

* Between 1780 and 1781, the Royal Navy employed the sloop.

Between 1780 and 1800, he was involved at different times with the publishing of four different journals all relating to mathematics and its applications.

Engraving based on the painting " Action Between the Serapis and Bonhomme Richard " by Richard Paton, published 1780

Between 1741 and 1780 Amaru II went into litigation with the Betancur family over the right of succession of the Marquisate of Oropesa and lost the case.

Between 1780 and 1787 he had founded a series of prizes, the awards to be made by the French academy and the academies of science and medicine.

Between 1780 and 1782, the Rebellion of Túpac Amaru II inspired a violent Aymara-led revolt across the Upper Peru highlands, evidencing the huge resentment towards colonial authorities from both mestizos and indigenous populations.

Between 1780 and 1830, the house was leased to General Thomas Garth, principal equerry to King George III.

Between 1780 and 1867, the name ' Sete Lagoas ' was used for several regional types of administrations.

Between 1767 and 1780, William Kent's earlier " deformalising work " was completed, as well as further landscaping, planting, clearing and riverside work.

Between 1778 – 1780 he was a member of the Permanent Council.

Between 1760 and 1780, was the beginning of the renovation / remodelling of the roads Rua de São Roque, Rua de Calhariz and Rua do Século, that included the widening of the routes and construction of new buildings.

Between 1820 and 1870, HBC issued its own paper money.

Between 1795 and 1820, she was Princess of Wales.

Between 1800 and 1820, the legendary Colonel Plug also, known as Col. Plug or Colonel Fluger, ran a gang of river pirates on the Ohio River, in a cypress swamp, near the mouth of the Cache River, which was below Cave-In-Rock and Fort Massac and just above the confluence of the Ohio and Mississippi Rivers.

Between 1812 and 1816 divisions developed between an Unitarist faction centred on Buenos Aires and a Federalist faction in the provinces, which eventually led to a series of civil wars that ended with the conquest of Buenos Aires by Federalist caudillos at the Battle of Cepeda in 1820.

Between 1820 and 1824, the county's territory extended to the Michigan boundary ; consequently, the plat for the town of Fort Wayne ( now a city ) is recorded in Randolph County's Recorder's Office.

Between 1820 and 1823 he prepared a treatise on a complete system of non-Euclidean geometry.

* Between a Rock and a Hard Place: A History of American Sweatshops, 1820 – present An online exhibition from the National Museum of American History, Smithsonian Institution

Between 1810 and 1820, several French Canadian fur traders, including Lamar Andie, Jean Baptiste Recollect, and Pierre Constant had established fur trading posts around Muskegon Lake.

Between 1820 and 1829 there were two fulling mills and one carding mill in operation, and sheep raising peaked circa 1830.

Between 1820 and 1823, the people of Kraków erected the Kościuszko Mound to commemorate the Polish leader.

The first industry was a flour mill built by James McCormick in 1817. Between 1820 and 1850 there were two more flour mills, a carding mill, two saw mills, two barrel factories, two distilleries, a wheelwright, a millwright, blacksmith and a tannery.

Between 1820 and 1850, the non-mechanized factories supplanted the traditional artisan shops as the predominant form of manufacturing institution.

Between 1810 and 1820, local farmers, who believed that wolves were denning in the blowdowns, set fire to the mountain again.

Between 1820 and 1831 the British had constructed a similar albeit larger citadel in Quebec City known as the Citadel of Quebec.

Between 1820 and 1835 alone, some 5000 Mexicans died in Apache raids, and 100 settlements were destroyed.

Between 1820 and 1830, the Iowa ceded their Minnesota, Iowa and Missouri lands to the U. S. government.

Between 1820 and 1830, according to a statement made by Lundy himself, he traveled “ more than 5000 miles on foot and 20, 000 in other ways, visited 19 states of the Union, and held more than 200 public meetings .” He was bitterly denounced by slaveholders and also by such non-slaveholders as disapproved of all anti-slavery agitation, and in January 1827 he was assaulted and seriously injured by a slave-trader, Austin Woolfolk, whom he had severely criticized in his paper.

Between the years of 1794 and 1833, the Penobscots and Passamaquoddy tribes ceded the majority of their lands to Massachusetts ( then to Maine after it became a state in 1820 ) through treaties that had not been approved by the Federal government.

Between 1817 and 1820 it was treason to kill the Prince Regent.

Between 1820 and 1846, the Russian Empire allocated land to the Gagauz and gave them financial incentives to settle in Bessarabia in the settlements vacated by the Nogai tribes.

Between 1820 and 1860, the port of St. Andrews was used extensively during the Irish Migration.

Between 1820 and 1910, Hungarian speaking population in Bačka increased from 121, 688 ( 31. 5 %) to 363, 518 ( 44. 75 %).

Between 1820 and 1924, the university experienced numerous changes, including temporary closings, fractures, refinancing and changes of denomination, caused on more than one occasion by political reasons.

Between 1740 and 1820, the Leeds-Elland and Dewsbury-Leeds turnpike roads were built through Beeston ; nationalised in the 1870s these roads remain through the area as Elland Road and Dewsbury Road respectively.