In 1806 Reicha travelled to Leipzig to arrange a performance of his new work, the cantata Lenore ( stopping at Prague to see his mother for the first time since 1780 ), but because Leipzig was blockaded by the French, not only was the performance cancelled, but Reicha could not return to Vienna for several months.

Canova went on to enjoy small commissions, but his fame did not come until 1780 when he travelled to Rome and found himself inspired and invigorated by the scope and quality of the art and architecture.

He was released to travel in September 1780, and travelled to London after landing in Ireland.

His grandfather, also called John Aikin ( 1713 – 1780 ), was a Unitarian scholar and theological tutor, closely associated with Warrington Academy.

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.

The Code of Hammurabi, ( 1780 BCE ), dealt with the reciprocity of the Lex talionis, in ways, such by limiting retribution, as they did concepts of retribution ( literally " an eye for an eye, a tooth for a tooth ").

The emancipation of the serfs came in 1770 – 1830, beginning with Schleswig in 1780.

The Austrian branch went extinct in the male person in 1740 with the death of Charles VI and in the female person in 1780 with the death of his daughter Maria Theresa and was succeeded by the Vaudemont branch of the House of Lorraine in the person of her son Joseph II.

In late 1780 the nature of the society was to change again with the move to Birmingham of Joseph Priestley.

According to the enthnographer James Mooney, the population of the tribe was about 200 families in 1702 ; 1000 people in 1780 ; 300 in 1805 ; 80 in 1829, when they were living with the Otoe ; and 13 in 1910 ; afterward, their population numbers are combined with those of the Otoe.

* 1780 – American Revolution: George Washington grants the Continental Army a holiday " as an act of solidarity with the Irish in their fight for independence ".

In 1780, when plague was in Poland, even vessels with grain from the Baltic had to lie forty days in quarantine, and unpack and air the sacks ; but owing to remonstrances, which came chiefly from Edinburgh and Leith, grain was from that date declared to be a non-susceptible article.

During this campaign in September 1780, Tipu Sultan was dispatched by Hyder Ali with 10, 000 men and 18 guns to intercept Colonel Baillie who was on his way to join Sir Hector Munro.

In 1780, Herschel was appointed director of the Bath orchestra, with his sister often appearing as soprano soloist.

* May 13 – Maria Theresa of Austria, Archduchess of Austria and Queen of Hungary and Bohemia, married with the Emperor of the Holy Roman Empire ( d. 1780 )

After the American Revolutionary War established the United States, northern states, beginning with Pennsylvania in 1780, passed legislation during the next two decades to abolish slavery, sometimes by gradual emancipation.

The Bermudians on the Turks continued to be governed under their own regulations, with the assent of the royal agent, until 1780, when a more formal version of those regulations was submitted for the assent of the Crown, which was given.

In 1780, Antoine Lavoisier used a Guinea pig in his experiments with the calorimeter, a device used to measure heat production.

* Giovanni Battista Cirri ( 1724 – 1808 ) was Kapellmeister ( Maestro di Cappella ) in the Cathedral of Forlì, in Italy: from 1780, with Ignazio Cirri ; after his death, alone.

Krasicki was honored by Poland's King Stanisław August Poniatowski with the Order of the White Eagle and the Order of Saint Stanisław, as well as with a special 1780 medal featuring the Latin device, " Dignum laude virum Musa vetat mori " (" The Muse will not let perish, men who are deserving of glory "); and by Prussia's King Frederick the Great, with the Order of the Red Eagle.

In 1780 France sent Rochambeau and de Grasse to help the Americans, along with large land and naval forces.

In 1780, the Viceroyalty of Peru was met with the insurrection of curaca Condorcanqui or Tupac Amaru II, which would be continued by Tupac Catari in Upper Peru.

Rat Island in Alaska was infested with brown rats after a Japanese shipwreck in 1780.

In 1780, Wolcot went to London and commenced writing satires.

This annual contributing ceased when Newton left in 1780 when he took the position of Rector at St. Mary Woolnoth, in London.

* Andrew, Donna T. " Popular Culture and Public Debate: London 1780 ".

* Christopher Bayly's The Birth of the Modern World: Global Connections and Comparisons, 1780 – 1914 ( London, 2004 )

Patriots and Liberators: Revolution in the Netherlands, 1780 – 1813 ( London: Collins, 1977 )

In June 1780 Amherst oversaw the British army as they suppressed the anti-Catholic Gordon Riots in London: after the outbreak of rioting Amherst deployed the small London garrison of Horse and Foot Guards as best as he could but was hindered by the reluctance of the civil magistrates to authorise decisive action against the rioters.

The opera was first performed in London in 1780 .< ref > George Truett Hollis.

of June 5, 1780 ( Corporation of London )

In 1780 it then became the route of the turnpike road from London to Brighton, and subsequently became the basis for the modern A23.

* Cumberland House, Pall Mall, London, alterations and interiors ( 1780 – 88 ) demolished

* Osterley Park, west London ( 1761 – 1780 )

When the shocking Gordon riots exploded in London in June 1780, Fox – though deploring the violence of the crowd – declared that he would " much rather be governed by a mob than a standing army.

* The Belle's Stratagem ( 22 February 1780, Covent Garden, London )

* The Artifice ( 14 April 1780, Drury Lane, London )

* Ranelagh Songs ( London, 1780 )

In London, he employed his knowledge of English and his learning to secure a living by publishing books on various subjects, and English translations of German works, and there are allusions to him as “ a Dutch savant ” in 1780 in the writings of Horace Walpole, who gave him money and helped him to publish an Essay on the Origin of Oil-painting ( 1781 ).

Until 1780 captains of the HAC trained the officers of the London Trained Bands.

The Company served in Broadgate during the Gordon Riots of 1780, and in gratitude for its role in restoring order to the City, the Corporation of London presented " two brass field-pieces ", which led to the creation of an HAC Artillery Division.

( London, 1780 – 1790 ), and in James Boswell's Life of Johnson.

This provoked an upsurge of anti-Catholic feelings and the formation of the Protestant Association leading to the Gordon Riots in London in June 1780.

He was MP for Southwark 23 December 1765 – September 1780, an Alderman, and Sheriff of the City of London: a respected, religious man who was a good hunter and sportsman with a taste for gambling.

In 1780, Abbott married Anna Maria, and again settled in London, residing for many years in Caroline Street in Bloomsbury.

In 1780 his father's death provided him with a small fortune, and he went to London.

In early December 1780 Soane took lodgings at 10 Cavendish Street London.