Find something worth your time.
Start with a place, what you do or what you want to understand. Maps, cases, experiments and stories from across the library.
Where would you like to start?
Interpret traces, explore images and follow cases from published data. Educational material, with sources and limitations explained in each project.
Classroom materials and interactive projects for language, science and civics. When a project uses school data, its page explains who was counted and for which period.
Follow words across languages, maps and centuries. Dictionaries and studies do not always agree; these projects show where evidence ends and a hypothesis begins.
Travel guides, rules and places to explore in Romania, London and Barcelona. Some information changes; check each page’s date and source before you go.
Projects built from registers, datasets and public records. Before citing a number, check the source, what it measures, its time period and what it cannot show.
Explanations about birth, development, health and school, based on studies and public records. They can help you understand and ask questions; they do not replace medical advice for your child.
One place, many stories.
Look up a town or county. Explore documented places, county data and tools that let you find your locality.
Use the data that interests you
Explore a subject.
Each collection has its own map, selection or story. Choose a starting point and explore as far as you like.