This lab presents innovating visualizations of data: diagrams, timelines, maps. This data is available and freely usable (Open license), in RDF or JSON.
Image from Gallica about Chagos (îles)

Chagos (îles)

Chagos (îles)
Source file
RAMEAU - Source record
Archipel corallien de l'océan indien, dépendance de la Grande-Bretagne
Variant subject headings
British Indian Ocean Territory (anglais)