Editing 1789 (section)

=== April&ndash;June ===
* [[April 1]] &ndash; At Federal Hall, the [[United States House of Representatives]] attains its first [[quorum]], and elects congressman [[Frederick Muhlenberg]] as the first [[Speaker of the United States House of Representatives|Speaker of the House]].
* [[April 6]] &ndash; At Federal Hall, the [[United States Senate]] attains its first [[quorum]], and elects [[John Langdon (politician)|John Langdon]] of [[Pennsylvania]] as its first [[President pro tempore of the United States Senate|President pro tempore]]. Later that day, the Senate and the House of Representatives meet in joint session for the first time, and the electoral votes of the first U.S. Presidential election are counted. General George Washington is certified as President-elect, and John Adams is certified as Vice-President elect.
* [[April 7]] &ndash; [[Selim III]] (1789–1807) succeeds [[Abdul Hamid I]] (1773–1789) as [[Ottoman Sultan]].
* [[April 21]] &ndash; [[John Adams]] takes office as the first vice president of the United States, and begins presiding over the United States Senate.
[[File:Mutiny HMS Bounty.jpg|thumb|right| [[April 28]]: [[Mutiny on the Bounty|Mutiny on the ''Bounty'']].]]
* [[April 28]] &ndash; [[Mutiny on the Bounty|Mutiny on the ''Bounty'']]: [[Fletcher Christian]] leads the [[mutiny]] on the British [[Royal Navy]] ship {{HMS|Bounty}} against Captain [[William Bligh]], in the Pacific Ocean.
[[File:Washington's Inauguration.jpg|thumb|right| [[April 30]]: [[George Washington]], inaugurated as the First President of the United States.]]
* [[April 30]] &ndash; [[George Washington]] is [[First inauguration of George Washington|inaugurated]] at Federal Hall in New York City, beginning his term as the first president of the United States.
* [[May 5]] &ndash; In France, the [[Estates-General of 1789|Estates-General]] convenes for the first time in 175 years, taken as the start of the [[French Revolution]] (1789–[[1799]]).
* [[June]] &ndash; The ''[[Inconfidência Mineira]]'' is the first attempt at Brazilian independence from Portugal.
* [[June 17]] &ndash; In France, representatives of the Third Estate at the [[Estates-General of 1789|Estates-General]] declare themselves the [[National Assembly (French Revolution)|National Assembly]].
* [[June 20]] &ndash; The [[Tennis Court Oath]] is taken in [[Versailles, Yvelines|Versailles]].
* [[June 23]] &ndash; [[Louis XVI of France]] makes a conciliatory speech urging reforms to a joint session, and orders the three estates to meet together.