These are the 5 rounds every player got on July 21, 2026, with the answers and the history behind them. This day is finished, so nothing here spoils a puzzle you can still play — today’s Daily Challenge is a different five events.
Not enough completed runs on this day to report an average without singling out an individual player’s score — we publish one from 5 finishers up.
Round 1
Battle of Preveza
Battle of Preveza · 1538 · Early Modern
Why there: Preveza guards the mouth of the Ambracian Gulf on Greece's western coast, a chokepoint controlling the sea lanes between the Ottoman Balkans and the Adriatic approaches to Venice and Italy, making it the natural clash point for rival Mediterranean fleets.
Why then: By the 1530s the Ottomans under Suleiman had absorbed the corsair fleets of Barbarossa into imperial service, and Charles V's Habsburg-Venetian-Papal Holy League formed specifically to contest this new Ottoman naval reach, so the galley-warfare showdown could only come once both sea powers had consolidated.
- This 1538 naval clash was an Ottoman victory under the admiral Hayreddin Barbarossa.
- Barbarossa defeated a Holy League fleet whose nominal commander was the Genoese admiral Andrea Doria.
- The Holy League's larger fleet was crippled when calm winds becalmed its ships, securing Ottoman naval dominance for decades.
Round 2
Battle of Myriokephalon
Battle of Myriokephalon · 1176 · Medieval
Why there: The battle unfolded in a narrow Anatolian mountain pass on the route toward Konya, the inland Seljuk capital, because Byzantine armies bent on reconquering the highland interior had to funnel through such defiles where terrain neutralized their numbers and invited ambush.
Why then: By 1176 the Seljuk Sultanate of Rum had consolidated its grip on the Anatolian plateau since Manzikert (1071), while Emperor Manuel I Komnenos, at the height of his ambitions and resources, gambled on a decisive campaign before Turkish power grew unshakable.
- This was a defeat of a Byzantine emperor by a Seljuk sultan.
- Often compared to Manzikert, it ended Byzantine ambitions to retake the Anatolian interior.
- It was fought at a mountain pass in southwestern Anatolia, in modern Turkey.
Round 3
Battle of Peleliu
Battle of Peleliu · 1944 · 20th Century
Why there: Peleliu sat in the Palau island chain guarding the eastern approaches to the Philippines, and its Japanese airfield was seen as a threat to General MacArthur's planned invasion, making the tiny coral island a target for American amphibious assault.
Why then: By 1944 the American island-hopping campaign was driving toward the Philippines, and Japan, having lost hope of stopping landings on the beaches, had shifted to a new doctrine of attrition from fortified inland caves that turned such islands into prolonged killing grounds.
- U.S. Marines fought entrenched Japanese forces on this island.
- Japanese defenders used a network of caves and a ridge nicknamed 'Bloody Nose Ridge.'
- The high casualties relative to its strategic gain made it one of the war's most controversial battles.
Round 4
Withheld from the archive
This round was played, but we do not republish it here. Recent events involving mass civilian casualties are excluded from our public archive under our content policy, whatever their place in the day’s puzzle.
Round 5
Peterloo Massacre
Peterloo Massacre · 1819 · 19th Century
Why there: Manchester was a booming cotton-industry city whose population had exploded yet still had no parliamentary representation, making its St Peter's Field the natural gathering ground for demands that the swollen unrepresented masses finally get the vote.
Why then: Post-Napoleonic economic distress, the Corn Laws, and rising working-class radicalism collided with a nervous government that lacked a professional police force, so authorities relied on amateur mounted yeomanry who panicked and charged the crowd.
- The massacre took place at St Peter's Field in a major English industrial city (1819).
- The grim nickname parodied a famous battle of four years earlier.
- It spurred the campaign for parliamentary reform and a freer press.
Every Daily Challenge is five real events, one from each of five different eras, identical for every player, scored up to 10,000 points a round on how close you land in space and in time. Read how to play, see where the events come from, or play today’s.