    __notoc__ year 1784 (mdcclxxxiv) was a leap year starting on thursday (link will display the full calendar) of the gregorian calendar and a leap year starting on monday of the 11-day slower julian calendar. == events == === january&ndash;june === * january 6 &ndash; the turks agree to russia's annexation of the crimea in the treaty of constantinople. * january 14 &ndash; the congress of the united states ratifies the treaty of paris with great britain to end the american revolutionary war, with the signature of president of congress thomas mifflin. * january 15 &ndash; henry cavendish's paper to the royal society of london, experiments on air, reveals the composition of water. * february 28 &ndash; john wesley ordains ministers for the methodist church in the united states. * may 20 &ndash; a treaty is signed in paris between the kingdom of great britain and the dutch republic formally ending the fourth anglo-dutch war. * june 4 &ndash; elizabeth thible is the first woman to ride in a hot air balloon, at lyon, france.  === july&ndash;december === * august 15 &ndash; cardinal de rohan is called before the court to account for his actions in the queen's necklace affair. * august 16 &ndash; britain creates the colony of new brunswick. * september 22 &ndash; russia establishes a colony at kodiak, alaska. * october 31 revolt of horea, cloÈca and criÈan in transylvania * november 26 &ndash; the roman catholic apostolic prefecture of the united states is established. * december &ndash; immanuel kant's essay "answering the question: what is enlightenment?" is published. * december 25 &ndash; the methodist episcopal church, usa is officially formed at the "christmas conference" led by thomas coke and francis asbury. === date unknown === * emperor josef ii suspends the hungarian constitution because of a revolution in [[transy
1784