Stop searching. Start finding
real primary sources.
The search bar is built for one thing: finding primary and secondary sources. Type any historical topic and the AI identifies the most relevant sources, surfaces full metadata, and finds free, open-access copies you can actually read. For questions and analysis, you'll use Sofia instead (more on her below).
What you can search
Millions of primary and secondary sources spanning every period, country, and event. Government archives, digitized manuscripts, open-access repositories, and the broader web.
Verify claims with real sources
- “Which ancient Roman sources are most cited for explaining why the Western Empire fell?”
- “What did the Spanish actually write about Inca construction methods?”
- “Which primary sources describe daily life in medieval London?”
Find the actual documents
- “Find the original letters between John and Abigail Adams during the Revolution”
- “Where can I read the Dead Sea Scrolls fragments and scholarly transcriptions?”
- “Find survivor testimonies and letters from the sinking of the Titanic”
Build DBQ document sets
- “Create a DBQ document set comparing Hoover and FDR on the Great Depression”
- “Build a document set on Gandhi and MLK Jr comparing their approaches to civil disobedience”
- “Gather loyalist and patriot pamphlets and speeches from the American Revolution”
Corroborate with evidence
- “Corroborate what happened in the Gulf of Tonkin incident using primary sources”
- “Corroborate the existence of MKUltra using primary sources”
- “What sources prove or disprove the Dreyfus affair conspiracy?”
Find declassified documents
- “What declassified CIA documents cover the 1953 Iran coup?”
- “Find court records and trial transcripts from the Nuremberg trials”
- “Pull the most relevant documents about what Snowden revealed”
Compare multiple perspectives
- “Gather abolition pamphlets, sermons, and newspapers and compare arguments by region”
- “Collect Indian independence speeches from British officials and Indian leaders”
- “Compare how different countries reported the fall of the Berlin Wall”
One search. Your top 10 sources.
Every source is a card you can act on. See who wrote it, when it was created, where it came from, and how relevant it is to your research. Then go further: find a free copy online, fact-check its claims, run a deep analysis, or save it to your workspace and start writing.
1.The Secret History of the Mongols
Descrip.A 13th-century chronicle of Temüjin's rise as Genghis Khan, documenting the Mongol Empire's origins, alliances, and campaigns.
What you can do with each source
Ask Sofia
Every source card has an Ask Sofia button that opens a conversation focused on that source. Ask Sofia about its credibility, bias, context, significance, or how it connects to other results. For quotes or exact claims, open the original with Find Source and add the link or upload the document.
Find Source
Found a source that matters? This button searches for a free, open-access copy you can read right now. No paywall, no login. Add any link to your Sofia chat and she'll read the full content so you can ask questions about what it actually says.
Images
Need visuals tied to the source or event? Images searches for open-access images, posters, maps, and archival photos you can use in lessons, presentations, or research notes.
Learn
Want to understand a source fully? Learn opens a menu of analysis tools. Get a 2000-word deep dive, check for bias, see a timeline, read the historiography, generate an audio podcast, or test your knowledge with quizzes and flashcards.
+ Button
Want to save a source for later? The + button lets you add it to a workspace collection or send it straight to the Notetaker, the built-in research editor. Build a library of sources across multiple projects and keep your notes, citations, and analysis all in one place.
Fact Check
Not sure if a source is reliable? Fact Check runs a live web search to cross-reference its claims against other sources online. It tells you what holds up, what doesn't, and where the discrepancies are so you can make your own judgment.
Resources
Need more material on the same topic? Resources searches for peer-reviewed articles, academic citations, books, PDFs, YouTube videos, images, and blog articles. Each result links directly to the original so you can access it immediately.
Meet Sofia, your AI research assistant
Where the search bar finds sources, Sofia helps you understand them. Ask her questions, compare results, check credibility and bias, or work through what a source means. She's available before you search, after results load, and while you write. Add a source link to chat or upload a document when you want her to work from the original text itself. Paywalled and file-sharing links are not supported.
How Sofia helps at each step
Before you search
Open the chat on the search page before running a search. Sofia can give you an overview of any historical topic, suggest what to search for, answer quick questions, or analyze a YouTube video or URL you paste in. She helps you figure out the right query before you use a credit.
After you search
Once your sources load, Sofia can talk about all of them at once. Ask her to compare sources, rank them by reliability, explain how they connect, or identify gaps in your evidence. She sees every source card and its metadata.
Ask Sofia about a specific source
Every source card has an Ask Sofia button. Click it and the conversation opens focused on that source. Sofia has its full metadata in context and prioritizes it when you ask questions. If you ask her to verify, summarize, or fact-check, she will automatically try to pull the source's online content too. This is different from the all-sources mode: Sofia treats that card as the subject of the whole conversation.
ADD to Chat
Found a link through Find Source? Click “ADD to Chat” and Sofia reads the actual page content. She goes from knowing what the source is to knowing what it says. Ask her to summarize it, pull out key quotes, or explain how it supports your argument.
Upload a document
Use the + button in the Sofia chat to upload a PDF, DOCX, or TXT file. Once uploaded, Sofia has the full text and can summarize it, pull specific quotes, answer questions, or compare it to your other sources. PDFs support up to 100 pages. The document stays cached for 4 hours so you can keep asking questions without re-uploading.
Voice input
Talk to Sofia instead of typing. The chat supports voice input on desktop and mobile. On desktop, listening stays on so you can speak naturally. Say “send” to submit your message hands-free. Useful when you're reading a physical document and want to ask a question without switching to the keyboard.
From sources to finished research
You found your sources. You verified them. Now turn them into something. Save sources to a workspace, write in the Notetaker with Sofia's help, and export when you're done.
What you can do with your sources
Save sources to a workspace
Use the + button on any source card to save it, add it to a workspace, or send it directly to the Notetaker. Organize sources by project, topic, or assignment so you never lose track of what you found.
Write in the Notetaker
The Notetaker is a full research editor built into the app. Format your text, create multiple documents, and pin up to 3 source URLs so Sofia always has your citations in context when you ask for help.
Let Sofia help you write
Select any text in the editor and choose from 28 AI commands. Sofia can write introductions, improve clarity, simplify language, summarize, change tone, switch writing style, translate into 11 languages, or expand your notes into full paragraphs. Every command uses your pinned sources as context.
Export to Word
When your research is ready, export any document as a .docx file. Open it in Microsoft Word, Google Docs, or any word processor. Your formatting, structure, and content come through exactly as you wrote it.
The Secret History of the Mongols - Notes
Last saved: 2:45 PM
The Secret History of the Mongols - Analysis
The chronicle frames Temüjin's rise through loyalty oaths, shifting alliances, and a mandate from Eternal Heaven, emphasizing unity and discipline among the tribes.
Writing
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Formal
It records key campaigns, rivalries, and diplomatic moments, portraying Genghis Khan as both strategist and lawgiver while noting the moral lessons meant for successors.
Key themes: divine legitimacy, kinship obligations, steppe warfare strategy, consolidation of power...
Built for people who need real sources
Whether you're writing a paper, building a lesson plan, researching for a video, or just curious about history, the app works the same way. Search, find, verify, analyze, write.
Students
Build DBQ document sets, find sources your teacher will accept, and stop relying on ChatGPT for research.
History enthusiasts
Go deeper than YouTube and Wikipedia. Read the actual letters, diaries, and documents everyone references but nobody links to.
Teachers
Find classroom-ready primary sources with full metadata. Give students a research tool instead of a list of 30 archive websites.
Content creators
Research a video or podcast in minutes. Find declassified documents, court records, and original sources that build credibility.