The Wikipedia article of the day for June 24, 2020 is Battle of Sluys.
The Battle of Sluys was a naval battle fought on 24 June 1340 between England and France, in the roadstead of the since silted-up port of Sluys. The English fleet of 120–150 ships was led by Edward III of England and the 230-strong French fleet by Hugues Quiéret, Admiral of France, and Nicolas Béhuchet, Constable of France. It was one of the opening engagements of the Hundred Years' War. Edward sailed on 22 June and encountered the French the next day; they had bound their ships into three lines, forming large floating fighting platforms. The English were able to manoeuvre against the French and defeat them in detail. Most of the French ships were captured, and they lost 16,000–20,000 men killed, against 400–600 for the English. The English were unable to take strategic advantage, barely interrupting French raids on English territories and shipping. Operationally the battle allowed the English army to land and to then besiege the French town of Tournai, albeit unsuccessfully.