The Digital Classicist is holding an “online sprint” on Tuesday 31 May, from 16–18h BST (= 17–19 CEST = 11–13 EDT = 10–12 CDT, etc.), with the aim of adding articles to, or improving existing articles in, the wiki, on geographical or geospatial datasets, projects, tools, methodologies and other related questions. All of you who are working in the geohumanities (whether on ancient or premodern sources) are invited to join.