Most ancient battles changed very little. These ten changed a great deal, ending empires, opening continents or deciding who would rule Rome.
Ancient armies were slow, expensive and hard to replace, so a single bad afternoon could decide a war. That is why the battles remembered from Greece and Rome tend to be the ones that removed an option permanently: a fleet that could not be rebuilt, three legions that were never re-raised, a king with nowhere left to retreat. Casualty figures from these fights come from writers with reasons to exaggerate, so the numbers should be treated loosely. The outcomes are firmer ground, and each explanation below sticks to what actually followed.
Every question in this quiz is listed below with its correct answer and the reasoning behind it. Play first if you would rather not see the answers — or read through as a study sheet.
Play it insteadAnswer: B. Thermopylae
Why: Leonidas and his Spartans, alongside allied contingents, blocked the narrow coastal route for several days until a local guide led the Persians around by a mountain path. The delay bought time for the Greek fleet to organise.
Answer: A. Salamis
Why: Themistocles drew the larger Persian fleet into narrow water where its numbers became a liability. Herodotus says Xerxes watched the defeat from a seat set up on the shore.
Answer: D. Hannibal
Why: He let his centre give ground on purpose and folded his wings inward until the Roman force was surrounded. It remains one of the worst single days any Roman army suffered.
Answer: C. Scipio Africanus
Why: Scipio had taken the war first to Spain and then to Africa, which forced Hannibal to abandon Italy and come home. At Zama his men opened lanes in their own ranks so the charging war elephants could pass straight through.
Answer: B. Alesia
Why: Caesar ringed the hilltop town with two lines of fortification, one facing inward at the defenders and one facing outward at the relief army. The surrender effectively ended organised resistance in Gaul.
Answer: A. The Teutoburg Forest
Why: Arminius, a Germanic nobleman who had served with the Roman army, led Varus and his column into a trap over several days of running attack. Rome afterwards gave up on holding territory east of the Rhine.
Answer: D. Actium
Why: Antony and Cleopatra broke out of the encirclement off western Greece and fled to Egypt, where both died the following year. Octavian's fleet was commanded by his friend Agrippa rather than by Octavian himself.
Answer: C. Pharsalus
Why: Pompey lost despite having the larger army and fled to Egypt, where he was murdered as he came ashore. Plutarch reports that Caesar was not pleased, having intended to pardon him.
Answer: B. The Milvian Bridge
Why: Constantine defeated his rival Maxentius at a bridge over the Tiber just outside Rome, a victory later tied to the story of a sign he saw beforehand. Within a year he and his eastern colleague had granted Christians freedom of worship.
Answer: A. Gaugamela
Why: Darius III left the field for a second time and was killed by his own officers soon after, which handed Alexander the Persian empire. The Granicus and Issus had been his earlier victories on the way east.
Battles That Turned the Ancient World has 10 questions and takes about 8 minutes to finish. It is rated Hard and sits in our Ancient Greece & Rome category.
Each of the 10 correct answers adds 10 XP, up to 100 XP for a clean run. Wrong answers cost you nothing, and your full question-by-question review is shown at the end.
Yes. All 10 questions carry a written explanation of why the correct answer is right, so the quiz works as a study sheet as well as a test.
Yes, as often as you like. The questions and the answer options are reshuffled on each run, and you can use Practice Mistakes afterwards to retry only the ones you missed. No account is needed to play.
Every quiz on QuizKite is researched, written and fact-checked by hand against reliable references, with an explanation for each answer. Read our full Editorial Policy to learn more about our content standards.
City-states, empire and the inheritance still in daily use.
Which Greek city-state was best known for its military discipline?
Walls, wars, philosophy and collapse, told through the men who held the purple.
Which emperor ordered a wall built across northern Britain in the 120s AD?
The conquests, the successor kingdoms and the three centuries of Greek influence that followed.
Alexander the Great inherited the throne of which kingdom?
Ten questions on the offices, alliances and civil wars of Rome before the emperors.
How many consuls normally held office in the Roman Republic at the same time?
Athenian politics, a long war with Sparta, and the scholars who worked in the same world.
What was the Greek term for an independent city-state?
Baths, apartment blocks, plumbing and fish sauce — how Romans actually lived day to day.
What were the large Roman public bath complexes called?