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[History of the Political Parties]

Detail of "Conspectus of the History of Political Parties" (1880). Also see these 2 links: www.historyshots.... & www.historyshots....

Infographic infographic.

US map through time

Matthew Picton, map of London (Great Fire, 1666), "Paper Sculptures" series. The map "depicts burned illustrations of 17th century street life." Caption from link

The Visual Insights team is obsessed with the patterns that emerge from aggregated Tweets over time. A continuing curiosity is about the geographical shapes that surface in geotagged Tweets. The images we’re sharing here use all of the geo-tagged Tweets since 2009 — billions of them. (Every dot is a Tweet, and the color is the Tweet count.)

Here is a detail accompanying the Chicago ethnicity map from 1950. They made a series of wage maps to accompany those of nationality, identifying the relative levels of income in each household. The black represented the lowest wage, so as to make it easier to identify the severest level of poverty. These maps were collaborations between several members of Hull House, most importantly Florence Kelley and Agnes Holbrook.

HISTORY: Scholar Makes Interactive Map Showing How Slaves Fought Back

Here's how much space the world's population would take up if everyone lived in one city: | 38 Maps You Never Knew You Needed