The Comédie-Française Registers Project collects and makes available to scholars more than a century’s worth of historical data from the archives of a royal theater in Paris. CFRP is led by Jeff Ravel of MIT’s history department and has been a long running project of HyperStudio. Right now, the contents of registers spanning from 1740 to 1793 are accessible through a faceted browser, which quickly filters and aggregates data across multiple categories and also links to scans of the original documents themselves. You can explore the data at app.cfregisters.org/registers.