1588
year

1588 (MDLXXXVIII) was a leap year starting on Friday of the Gregorian calendar and a leap year starting on Monday of the Julian calendar, the 1588th year of the Common Era (CE) and Anno Domini (AD) designations, the 588th year of the 2nd millennium, the 88th year of the 16th century, and the 9th year of the 1580s decade. As of the start of 1588, the Gregorian calendar was 10 days ahead of the Julian calendar, which remained in localized use until 1923.
Events
January–March
January 22 – Pope Sixtus V issues the papal bull Immensa aeterni Dei, a major reorganization of the Roman Curia creating 15 congregations of cardinals, including the Congregation of the Index Librorum Prohibitorum, the Church list of forbidden books; the Congregation of the Inquisition; and the Congregation of the Vatican Press.
January 24 – War of the Polish Succession: The Battle of Pitschen takes place at Pitschen (modern Byczyna in Poland) with Polish and Lithuanian troops commanded by the Polish hetman Jan Zamoyski defending against an invading Austrian force commanded by Maximilian III, Archduke of Austria. After his army is routed, Archduke Maximilian surrenders and is taken as a prisoner of war, and will be held for more than a year until his release is compelled by the intervention of Pope Sixtus V.
February 9 – The sudden death of Álvaro de Bazán, 1st Marquis of Santa Cruz, in the midst of preparations for the Spanish Armada, forces King Philip II of Spain to re-allocate the command of the fleet.
February 18 – In modern-day Sri Lanka, the siege of Colombo by King Rajasinha I of Sitawaka ends when Portuguese Admiral Pedro Teixeira arrives with a fleet of 80 ships and frees the capital of Portuguese Ceylon. King Rajasinha and his troops flee back to his capital at Seethawakapura.
March 20 – The ascension of Shah Abbas I as Emperor in Iran, of the Safavid Empire, is made official on the first day of the New Year on the Zoroastrian Calendar. Abbas has ruled since October 16, 1587.
March 25 – The English Army begins the recruitment of volunteers to prepare for the expected invasion by Spain.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 4, 2026. The linked authority identifier is Q6757. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1588, 1923 and 1587.
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This entry incorporates text from “1588” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.