Editing 1873 (section)

===April&ndash;June===
* [[April 1]] &ndash; British ocean liner {{RMS|Atlantic}} sinks off [[Nova Scotia]], killing 547.
* [[April 4]] &ndash; [[The Kennel Club]], the world's first [[kennel club]], is founded in the United Kingdom.
* [[April 13]] – [[Colfax massacre]]: More than 60 to 150 black men are murdered in [[Colfax, Louisiana]], while surrendering to a mob of former Confederate soldiers and members of the [[Ku Klux Klan]].
* [[April 15]]&ndash;[[April 17|17]] &ndash; [[American Indian Wars]]: The [[Second Battle of the Stronghold]] is fought.
* [[April 19]] &ndash; In [[Richmond, Rhode Island]], 11 people perish in a train derailment, due to a bridge washout in the village of Richmond Switch (modern-day [[Wood River Junction, Rhode Island|Wood River Junction]]). 
* [[April 23]] &ndash; [[Third Carlist War]] EVENTS IN MADRID, SPAIN -- Brigadier General Carmona confronts the insurgents at the Madrid bullring.
* [[May]] &ndash; Henry Rose exhibits [[barbed wire]] at an [[Illinois]] county fair, which is taken up by [[Joseph Glidden]] and [[Jacob Haish]], who invent a machine to mass-produce it.
* [[May 5]] &ndash; [[Third Carlist War]] in Spain: Battle of Eraul &ndash; Carlists under General Dorregaray defeat Republicans at Eraul, near Estella.
* [[May 9]]
** ''Der Gründerkrach'': The [[Wiener Börse]] ([[Vienna]] stock exchange) crash in [[Austria-Hungary]] ends the ''[[Gründerzeit]]'', and heralds the global [[Panic of 1873]] and [[Long Depression]].
** [[Third Carlist War]]: The Battle of Montejurra is fought at Navarra, Spain.
* [[May 20]]
** [[Levi Strauss]] and [[Jacob Davis (inventor)|Jacob Davis]] receive United States [[patent#139121]], for using [[copper]] [[rivets]] to strengthen the pockets of [[denim]] work pants. [[Levi Strauss & Co.]] begins manufacturing the famous Levi's brand of jeans, using fabric from the [[Amoskeag Manufacturing Company]] in [[Manchester, New Hampshire]].
** In [[Chipping Norton]], England, rioters attempt to free the [[Ascott Martyrs]] &ndash;16 women sentenced to imprisonment, for attempting to dissuade [[strikebreaker]]s in an agricultural labor dispute.
* [[May 23]]
** The Canadian Parliament establishes the [[North-West Mounted Police]] (which is renamed the [[Royal Canadian Mounted Police]] in [[1920]]).
** The [[Preakness Stakes]] horse race is run for the first time in [[Baltimore]].
* [[May 27]] &ndash; Classical archaeologist [[Heinrich Schliemann]] discovers [[Priam's Treasure]].
* [[May 28]]
** C. Laan brings order to the chaos created by the dockworker riots of [[Tripoli, Lebanon]].
** The city of [[Khiva]] in Turkestan falls to [[Imperial Russia]]n forces, under the command of General [[Konstantin von Kaufman]].
* [[June 4]] &ndash; [[American Indian Wars]]: The [[Modoc War]] ends with the capture of [[Kintpuash]] (''Captain Jack'').
* [[June 9]] &ndash; [[Alexandra Palace]] entertainment venue in London is destroyed by fire, only a fortnight after its opening.