#30DayMapChallenge Day 11: Red

This 1895 #map uses a clever technique to argue that New York City was already mostly socialist by the end of the 19th century. It uses just two colors: red, the printing color, and the negative white space of the paper color. The red area shows the parts of the the city that were putatively “socialist” already—things like roads, parks, bridges, and wharves that were owned and managed by the public.

https://www.leventhalmap.org/digital-exhibitions/bending-lines/why-persuade/1.8.1/

#30DayMapChallenge Day 10: A Bad Map

Something look amiss? This ~1625 map of North America depicts today’s California as an island! Though not actually "bad," it does present an example of mistaken surveying.

https://collections.leventhalmap.org/search/commonwealth:w9505r49w

#30DayMapChallenge Day 9: Space

This 1925 #map by the City of Boston Parks Department plots the locations of public open spaces across the city, designating parks of the city and metropolitan region as well as large cemeteries.

https://collections.leventhalmap.org/search/commonwealth:xw42qq88h

#30DayMapChallenge Day 8: OpenStreetMap

This map shows the area around the Central Library in Copley Square, as seen on OpenStreetMap (OSM). The image here shows the outlines of every change ever made to the area around Copley Square in OSM and is from a web app that allows a user to see changes in reverse chronological order.