"You can share photos of your students’ celebrations online using #LondonHistoryDay. Please ensure you have all photographic permissions in place before uploading any images."
"Launched by Historic England, the first ever London History Day will be on Wednesday 31 May 2017. It is chance for us to celebrate our city’s unique history and heritage: its historic buildings, sites, communities and heroes. The aim is for this to become an annual event for Londoners."
Teaching London Computing (a resource hub for CAS London) has put together a page on London, History and Computing full of the history of computer science and computational thinking, as it applies to London and beyond.