{"id":4170,"canonical_url":"https://www.kudos365.com/today-in-history/events/1886ce-may-4--4170","name":"1886 CE, May 4","year":1886,"era":"CE","month":5,"day":4,"url":"https://www.kudos365.com/today-in-history/events/1886ce-may-4--4170","iso-date":"1886-05-04","precision":"year-month-day","description":"\u003cp\u003eThe Haymarket Square Riot in Chicago, also known as the Haymarket massacre, takes place on on May 4, 1886, as a bomb exploded at a Chicago labor rally, wounding dozens of policemen, seven of whom eventually died. \u003c/p\u003e","additional_details":"\u003cp\u003eThe event led to the trial and conviction of eight anarchists, some of whom were later executed, despite the lack of definitive evidence of their involvement in the bombing. \u003ca href=\"https://guides.loc.gov/chronicling-america-haymarket-affair\"\u003eMore\u003c/a\u003e\u003c/p\u003e","photo":"https://k365fs.imgix.net/N9NSh2Q8TQODmp504V2b_Haymarket%20Riot-Harpers%20-%20PD.jpg?auto=format,compress\u0026fit=clip\u0026max-w=1600","photo_width":964,"photo_height":669,"created_at":"2025-05-16T15:03:23-07:00","updated_at":"2026-05-04T23:14:23-07:00","breadcrumbs":{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"May History","item":"https://www.kudos365.com/today-in-history/may"},{"@type":"ListItem","position":2,"name":"May 4","item":"https://www.kudos365.com/today-in-history/may-4"}]},"schema":{"@context":"https://schema.org","@type":"Thing","@id":"https://www.kudos365.com/today-in-history/events/1886ce-may-4--4170#eventK365","name":"1886 CE, May 4","headline":"The Haymarket Square Riot in Chicago, also known as the Haymarket massacre, takes place on on May 4, 1886,... - 1886 CE","description":"The Haymarket Square Riot in Chicago, also known as the Haymarket massacre, takes place on on May 4, 1886, as a bomb exploded at a Chicago labor rally,...","url":"https://www.kudos365.com/today-in-history/events/1886ce-may-4--4170","additionalType":"HistoricalEvent","inLanguage":"en","datePublished":"2025-05-16T15:03:23-07:00","dateModified":"2026-05-04T23:14:23-07:00","publisher":{"@id":"https://www.kudos365.com/#organizationK365"},"image":{"@type":"ImageObject","url":"https://k365fs.imgix.net/N9NSh2Q8TQODmp504V2b_Haymarket%20Riot-Harpers%20-%20PD.jpg?auto=format,compress\u0026fit=clip\u0026max-w=1600","width":964,"height":669},"temporalCoverage":"1886-05-04","isPartOf":[{"@id":"https://www.kudos365.com/#websiteK365"},{"@type":"CollectionPage","@id":"https://www.kudos365.com/today-in-history/may","name":"What Happened in May History"},{"@type":"CollectionPage","@id":"https://www.kudos365.com/today-in-history/may-4#pageK365","name":"What Happened on May 4"}]}}