ChronicleEvery era. Every exam.
One deck at a time.
Chronicle turns centuries of dates, treaties, and turning points into bite-sized flashcards you can drill on a bus ride between lectures.
What agreement reshaped Europe after Napoleon's defeat?
Tap to revealThe Congress of Vienna
Sept 1814 – June 1815. Redrew the map of Europe, established a balance of power that lasted nearly a century.
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Who assassinated Julius Caesar, and why?
Tap to flipThe Liberatores — Brutus & Cassius
A senate conspiracy of 23+ senators, fearing Caesar's permanent dictatorship. Killed on the Ides of March on the floor of the Theatre of Pompey.
What event is considered the start of the Protestant Reformation?
Tap to flipLuther's 95 Theses
Martin Luther nailed (or mailed) his 95 Theses to the Wittenberg Castle Church door, challenging papal indulgences and triggering a religious earthquake across Europe.
What was the immediate cause of the storming of the Bastille?
Tap to flipRumored royal troops massing around Paris
King Louis XVI's dismissal of finance minister Necker on July 11 sparked fears of a royal crackdown, driving Parisian crowds to seize arms and storm the fortress on July 14.
Why was the Berlin Wall built?
Tap to flipTo stop the brain drain to West Germany
By August 1961, 3.5 million East Germans had fled to the West. The GDR, with Soviet backing, erected the Wall overnight on Aug 13 to halt the mass emigration.
You just drilled 4 cards. Chronicle has 4,000+.
Every era, curated.
No gaps, no guesswork.
From the Fertile Crescent to the fall of the Soviet Union — 12 era-specific decks, built by AP teachers and history professors.
3000 BC – 500 AD
Ancient Civilizations
500 – 1400
Medieval Europe
1750 – 1850
Age of Revolution
1914 – 1945
World Wars
1945 – 1991
Cold War & Decolonization
Plus 7 more specialized decks
AP World History · AP US History · AP Euro · APUSH · IB HL
One card at a time.
Every time.
Pick your era & exam
Choose from AP World, AP US, AP Euro, or IB decks. Or browse by century. Chronicle knows what's likely on your exam.
Study one card at a time
No walls of text. One question. Flip. Rate your confidence: Again, Hard, Good, or Easy. The algorithm does the rest.
Spaced repetition reschedules your weak spots
Cards you rate "Again" or "Hard" come back sooner. Cards you nail get pushed to tomorrow, next week, next month. You spend time on what matters.
Track your progress on the visual timeline
Watch eras light up as you master them. The timeline shows exactly where you're strong and where to focus next.
AP World History
312 cards
AP US History
445 cards
AP European
228 cards
IB History HL
196 cards
Real students.
Real scores.
"I went from memorizing random dates to actually understanding cause and effect. Got a 5 on AP World. Studied almost entirely on the bus."
Priya Sharma
AP World History · Grade 11 · San Jose, CA
Result
5 on AP World
Streak
🔥 23 days
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148 high-yield flashcards covering the Congress of Vienna to WWII. The exact cards AP teachers say show up most. Enter your email, get the PDF instantly.
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Every era.
Every exam.
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