Thinking Like a Historian
Move beyond memorizing dates and narratives to analyze history as an active, evidence-driven discipline. Learn to cross-examine primary sources, track scholarly debates, weigh material culture, and untangle complex historical causality.
Like Duolingo, but for Thinking Like a Historian. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
83 levels across 8 sections, about 166 minutes end to end, roughly 33 days at five minutes a day. It moves through Interrogating Everyday Historical Claims; Reading Primary Sources Against the Grain; Deconstructing Historical Scholarship; Working with Non-Textual Evidence; Causation, Contingency, and Historical Time; Archives, Power, and Living Memory; Public History, Memory, and Misuse; and Historiography and the Limits of Knowledge. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android
Key ideas in Thinking Like a Historian
- Historical sources do not interpret themselves; historians arrange select evidence to build an argument
- Two historians can examine identical raw records and reach conflicting, coherent conclusions
- A historical assertion represents a thesis evaluated on how well evidence fits, not an immutable fact
- Viral claims often cite secondary articles that endlessly cite one another without checking the source
- Tracing citations backward uncovers whether a claim rests on actual evidence or an unverified 18th-century guess
- The root of a historical claim must be corroborated against contemporary primary accounts or material archaeology
- Historical evidence is only valid within specific bounds of social class, geography, and timeframe
- Elite institutional practices like lettres de cachet cannot be generalized across the broader peasantry
- Testing boundary conditions requires checking who the evidence actually applies to across society
- Presentism improperly condemns past figures using modern moral values and hindsight scientific knowledge
- Historical actors must be evaluated according to the epistemological frameworks available in their era
- Sensational chronicles and inquisitorial trials often record bizarre exceptions rather than typical daily life
- Systemic historical norms are established through routine, repetitive records like tax rolls and court dockets
- Confusing a vivid microhistorical anecdote with a general societal trend distorts historical reality
- Tracing custody links reveals where intermediate copyists omitted clauses or modernized vocabulary.
- Monastic copies often preserve authentic regional phrasing that later print editors smoothed over.
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Thinking Like a Historian the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Two scholars study the exact same Roman grain records, yet reach opposite conclusions. What explains this?
Get it right to open this lesson and 82 more in the app.
How to learn Thinking Like a Historian, step by step
Go in order. 83 short levels across 8 sections, about 2 hours 46 minutes in all, five minutes a day.
- 1
Interrogating Everyday Historical Claims
- Dissecting a Historical Claim in the Wild
- Auditing Document Provenance and Bias
- 2
Reading Primary Sources Against the Grain
- Reconstructing Unspoken Context
- Uncovering Silences and Absences in the Record
- Corroboration and Conflicting Testimonies
- 3
Deconstructing Historical Scholarship
- Mapping a Monograph's Core Argument
- Evaluating Historiographical Paradigms
- Auditing Footnote Trails and Evidentiary Chains
- 4
Working with Non-Textual Evidence
- Interrogating Material Culture and Archaeology
- Decoding Visual Sources, Maps, and Photographs
- Cliometrics and Quantitative History
- 5
Causation, Contingency, and Historical Time
- Disentangling Multi-Tiered Historical Causality
- Disciplined Counterfactual Thinking
- The Politics and Mechanics of Periodization
- 6
Archives, Power, and Living Memory
- The Architecture and Gatekeeping of the Archive
- Oral History and the Fragility of Living Memory
- 7
Public History, Memory, and Misuse
- Public Commemoration and Curatorial Politics
- Unmasking Forgery, Bad Faith, and Denialism
- Evaluating Historical Analogies in Modern Discourse
- 8
Historiography and the Limits of Knowledge
- Emplotment and the Narrative Shaping of History
- Historical Epistemology and the Quest for Objectivity
8 sections · 21 units · 83 levels. Built to play, not to enroll.
Questions about Thinking Like a Historian
How do I learn Thinking Like a Historian?
Go in order: start with Interrogating Everyday Historical Claims, then Reading Primary Sources Against the Grain, then Deconstructing Historical Scholarship, then Working with Non-Textual Evidence, and 4 more sections after that. On Tomo that's 83 short levels, about 2 hours 46 minutes in all, played five minutes a day. Start free and play the first level in under a minute.
Is there a Duolingo-style app for Thinking Like a Historian?
Yes. Tomo works like Duolingo: short daily lessons, streaks and quick quizzes. Thinking Like a Historian is one of its free courses, and you can type any other topic to get a course of your own.
Is the Thinking Like a Historian course free?
Yes. Thinking Like a Historian is playable on Tomo's free plan, which doesn't expire. No credit card, no waitlist. Download the app and start your first lesson.
How long does it take to learn Thinking Like a Historian?
83 levels across 8 sections, about 2 hours 46 minutes of play in total. It's built for five minutes a day, so you finish it a little at a time instead of all at once.
Do I need any background to start Thinking Like a Historian?
No. It's pitched at an intermediate level, so it starts where you are and builds up. If you can tap a phone, you can start.
Tomo is in ChatGPT
Tomo is also a ChatGPT plugin: the same playable courses, built and played inside your chat.
Add Tomo to ChatGPT- What to ask
- “Make me a Tomo course on black holes.” “Turn this chat into a Tomo course.”
- What you get
- Quick questions with instant feedback, hearts and stars, ready to play in about a minute.
- Where it goes
- No sign-up to start. Connect your Tomo account and your streak carries on in the app.
You pick the voice
Thinking Like a Historian is taught in the Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
More History on Tomo
How to Think Like a Historian
Move beyond memorizing dates and discover how historical knowledge is actually constructed. Learn to interrogate biased sources, read between the archival lines, and weigh competing interpretations to uncover the past with critical rigor.
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Learn how to read past events critically, dismantle common myths, and investigate the evidence behind historical claims. Master the tools historians use to separate fact from propaganda, uncover missing voices, and understand why the world became what it is today.
Historiography and Historical Inquiry
Examine the rigorous methods historians use to interrogate sources, construct causation, and critique narratives. Move beyond memorizing the past to master archival forensics, historiographical traditions, and epistemic limits.
Thinking Like a Historian
Move beyond memorizing dates and discover how history is actually made. Learn to interrogate biased sources, read archival silences, and dismantle the illusion of inevitability.
How to Read History
Learn to look past myths, propaganda, and hindsight to understand what really happened in the past. Discover how historians interrogate conflicting evidence, reconstruct lost worldviews, and explain complex events. Walk away with the critical tools to evaluate any historical claim you encounter in books, news, or culture.
Thinking Like a Historian
Stop treating the past as a settled list of dates and start investigating it like a detective. Learn how to interrogate biased eyewitness accounts, uncover hidden silences in surviving archives, and understand why historical narratives constantly change.
Start Thinking Like a Historian today.
Download Tomo, search Thinking Like a Historian, and play your first lesson in under a minute.