Editing 1877 (section)

=== April&ndash;June ===
* [[April 1]] &ndash; Following years of murders of [[Sharecropping|sharecroppers]]{{citation needed|date=September 2024}} and U.S. army personnel by the former slave owners, the [[Reconstruction era]] of the U.S. ends when Union troops pull out of the [[Southern United States|South-Eastern American States]]. This leaves the former slaves at the mercy of their owners{{citation needed|date=September 2024}}, and begins the [[Gilded Age]] when large businesses begin [[monopolization]] of the American economy{{citation needed|date=September 2024}}.  
* [[April 10]] &ndash; The first [[human cannonball]] act in the British Isles, and perhaps the world, is performed by 17-year-old [[Rossa Matilda Richter]] ("Zazel") at the London [[Royal Aquarium]].<ref>''[[The Guinness Book of Records]]''.</ref>
* [[April 12]]
** The United Kingdom annexes the [[South African Republic]], violating the [[Sand River Convention]] of [[1852]], causing the [[First Boer War]].
** The [[University of Tokyo]] is officially established in [[Japan]].
* [[April 24]] &ndash; [[Russo-Turkish War (1877–1878)]]: [[Russian Empire|Russia]] declares war on the [[Ottoman Empire]].
* [[May 5]] &ndash; [[Great Sioux War of 1876]]: [[Sitting Bull]] leads his band of [[Lakota people|Lakota]] into [[Canada]], to avoid harassment by the U.S. Army under Colonel [[Nelson Miles]].
* [[May 6]] &ndash; Chief [[Crazy Horse]] of the [[Oglala Sioux]] surrenders to U.S. troops in Nebraska.
* [[May 8]]&ndash;[[May 11|11]] &ndash; At Gilmore's Gardens in New York City, the first [[Westminster Kennel Club Dog Show]] is held.
* [[May 9]] &ndash; [[1877 Iquique earthquake|Iquique Earthquake]] and [[tsunami]]: An earthquake of at least magnitude 8.5 [[Surface wave magnitude|M<sub>s</sub>]] occurs on the west coast of South America, killing 2,541 around the [[Pacific Rim]].
* [[May 16]] &ndash; [[16 May 1877 crisis]] in France: Parliament passes a no-confidence motion against the government appointed by [[Patrice de MacMahon|President MacMahon]].
* [[May 21]] (May 9 [[Old Style|O.S.]]) &ndash; By a speech in the [[Parliament of Romania]] by [[Mihail Kogălniceanu]], the country declares itself independent from the [[Ottoman Empire]] (recognized in [[1878]] after the end of the Romanian independence war).
* [[June 15]] &ndash; [[Henry Ossian Flipper]] becomes the first [[African American]] cadet to graduate from [[United States Military Academy|the U.S. Military Academy]].<ref>{{cite book |first1=Lowell Dwight |last1=Black |first2=Sara Harrington |last2=Black |title=An Officer and a Gentleman: The Military Career of Lieutenant Henry O. Flipper |location=Dayton, Ohio |publisher=Lora Co. |year=1985 |isbn=978-0-96246-590-1 |url=https://books.google.com/books?id=L1zfAAAAMAAJ |page=66 |access-date=March 21, 2023 |archive-date=November 29, 2023 |archive-url=https://web.archive.org/web/20231129060155/https://books.google.com/books?id=L1zfAAAAMAAJ |url-status=live }}</ref>
* [[June 17]] &ndash; [[American Indian Wars]]: [[Battle of White Bird Canyon]] &ndash; The [[Nez Perce people|Nez Perce]] defeat the U.S. Cavalry at White Bird Canyon, in the [[Idaho Territory]]. This begins the [[Nez Perce War]].
* [[June 20]] &ndash; [[Alexander Graham Bell]] installs the world's first commercial telephone service in [[Hamilton, Ontario]], Canada.
* [[June 21]] &ndash; The [[Molly Maguires]] are hanged at [[Carbon County, Pennsylvania|Carbon County]] Prison, in [[Jim Thorpe, Pennsylvania|Mauch Chunk, Pennsylvania]].
* [[June 26]] &ndash; The eruption of the volcano [[Cotopaxi]] in [[Ecuador]] causes severe mudflows that wipe out surrounding cities and valleys, killing 1,000.
* [[June 30]] &ndash; The British Mediterranean fleet is sent to [[Besika Bay]].