Tudor London: The City and Southwark in 1520. Historic Towns Trust. Londonist does a good job introducing us to two maps of old London published by the Historic Towns Trust a few years ago—a map of medieval London (1270-1300) published in 2019, and a map of Tudor London (1520) published in 2018 (and updated in 2022). The Historic Towns Trust publishes many maps of British towns and cities—historical maps, not reproductions of old maps (in fact, Londonist points out that no maps of London prior to about 1550 currently exist). The Trust’s London maps are also available as overlays on the Layers ..read more

The Map Room now has, for some reason, a Bluesky account. I haven’t seen much in the way of cartographic activity on that platform, but maybe the massive onslaught of followers that will inevitably result from this post will change that ..read more

Google Maps is introducing a speedometer and speed limits to iOS and Carplay; the feature has been on Android since 2019. Meanwhile, Google has pushed back on the claim from one user that pop-up ads were turning up while navigating with Google Maps; rather, they say it was an instance of “promoted pins” that (should) only pop up if tapped on. 9to5Google: “we were able to replicate the exact same UI by tapping on a location on the map, so it seems the screen was either touched by accident or a glitch was at play ..read more

Modern online maps have so much data under the hood, and provide an overabundance of detail, that they can’t help but bombard the user, The Atlantic’s Ian Bogost argues, coining a term for their “sheer exhaustiveness”: map-splaining. It’s a challenge to take all that data and make directions comprehensible. The maps know that one road is five lanes wide and the other six; both have medians. They understand that right turns between the streets can be accomplished via dedicated merge lanes that skip the red light. They appreciate that two lanes allow left turns between each of these streets, fa ..read more

Indigenous Services Canada (screenshot) The Canadian government has launched an interactive map of former Indian residential schools. “The Indian Residential Schools Interactive Map allows users to visualize the location of the 140 former residential school sites recognized in the Indian Residential Schools Settlement Agreement as well as provide information on the current status and historical context of the site. The map has a search, filter, measurement and imagery slider to help users with analysis.” The map makes use of historical aerial photography to pinpoint the locations of schools th ..read more

A digital archive of the Ordnance Survey of Ireland has been launched, two hundred years after its founding. From the University of Limerick media release: In Ireland, between 1824 and 1842 the OS completed the first ever large-scale survey of an entire country, at a scale of six inches to the mile. Acclaimed for their accuracy, these maps are regarded by cartographers as amongst the finest ever produced. In addition to maps, the Ordnance Survey staff, both military and civilian, recorded other information such as archaeological and toponymical material including local customs, antiquities, p ..read more

Randall Munroe, “Bad Map Projection: Exterior Kansas,” xkcd, 26 June 2024. In the latest iteration of xkcd’s series of bad map projections, Randall puts Kansas—the putative centre of the contiguous 48 states—at the edge of the map ..read more

Quantum navigation systems are being tested in Britain. Last month there was a successful test flight of an aviation system, and a system is being tested on test trains on the London Underground. (It’s not clear to me whether these systems are related, but the U.K. has apparently been making a big push into quantum tech lately.) Quantum navigation is essentially quantum mechanics applied to dead reckoning, using the properties of supercool atoms to measure change of position. The advantage of the system is that it’s self-contained: it doesn’t require a GPS signal or navigation beacon to triang ..read more

Islario, Alejandro Polanco’s latest Kickstarter project, is a collection of 16th- to 19th-century maps of islands—some real, some phantom. “In Spanish, the word ‘islario’ means something like a “compendium of islands’ or an ‘atlas of islands’. Between the 16th and 19th centuries, many ‘islarios’ were created, books that contained only maps of islands. Since the traces used to draw these maps were often based on legends or comments from sailors in ports, the problem of distinguishing between real and fantastic islands arose.” In this blog post (in Spanish), Alejandro takes a look at one of the ..read more

A roundup of maps of venues and facilities for the 2024 Paris Olympics from competitive swimming website Swim Swam; the maps are small and mostly sourced from social media. The map on the Paris 2024 website is interactive, comprehensive and confusing: a case of doing everything but nothing well ..read more