Follow the question.

Put a place on the map, check the text of a treaty, or find evidence that could change your explanation.

Companion projects

WORLD REGIONS LAB

The world
behind the case.

Find a place, compare countries, or test your map knowledge. World Regions Lab is available in English, Spanish and German.

The Evidence Lab

A café queue, a navigation app and a confident claim. Choose evidence that separates rival explanations and build an investigation.

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Write down what you would expect to observe under each explanation before you open the evidence.

Open The Evidence Lab ↗Opens on Possible States. The activity has its own local save, backup and report controls.

Possible States

Comparative politics simulations on elections, power, belonging and collective action.

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Compare a case about incentives within a state with a Trouble in Common case about bargaining across borders.

Open Possible States ↗Hosted on the sister site. Each activity lists preparation, pacing and what students produce.

Readings, records and data

Links open in a new tab.

Data

Compare military spending

Stockholm International Peace Research Institute

Compare military expenditure across countries and years using SIPRI’s data and definitions.

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Compare total expenditure and the share of GDP for two countries. Explain why the rankings may tell different stories about capabilities and priorities.

Use the same unit and period for each comparison. Spending is one indicator of military capability.

Official records

Check who joined a treaty

United Nations Treaty Collection

Read the status of multilateral treaties deposited with the UN Secretary-General, including treaty actions, reservations and objections.

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Open a treaty connected to an activity. Record a signature, a ratification and a reservation if present. What separate evidence would tell you whether a state implemented it?

Public treaty records. The collection explains what the depositary covers and how its status records are maintained.

Official records

Read real climate commitments

UN Framework Convention on Climate Change

Find the climate commitments governments submit under the Paris Agreement and inspect each document’s version and date.

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Compare two governments’ targets. Mark any commitment that depends on outside finance or another condition.

Publicly posted submissions. Compare base years, coverage and conditions before interpreting different percentages.

Official records

Follow a human rights review

Office of the UN High Commissioner for Human Rights

Follow the Universal Periodic Review to find country records, stakeholder submissions and recommendations.

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Choose one recommendation. Identify who made it, who was meant to respond and what later evidence could show implementation.

Public review documents. Record the review cycle and distinguish a government response from an observed change.

Data

Compare conflict records

Uppsala Conflict Data Program

Explore datasets on organized violence, with definitions and codebooks for each release.

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Pick one conflict and look up how the dataset defines an actor and an event. Explain which kinds of harm or bargaining the record would miss.

Datasets are freely downloadable. Cite the version and record the definition you used.