Sociological Images

Last year I posted about a map several geographers put together showing the distribution of last names across the U.S. Historical immigration and internal settlement patterns are reflected in the concentrations of names across the country.

Now one of the geographers involved in that project, James Cheshire, has done the same for London. Using 2001 electoral rolls, Cheshire plotted the 15 most common surnames in 983 separate London districts. Here’s a section of the map of the most common name:

The size of the font is scaled to represent the number of people with each name. They’re color-coded by place or origin (though since many immigrants have Anglicized names, origin of a name may not reflect a person’s ancestry).

As Cheshire points out, a few names fill the top slot throughout most of London. As you go a bit further down the list, London’s diversity becomes more apparent. Here’s a small slice of the map of the 10th most common surnames:

Those of you with more knowledge of London, what noteworthy patterns do you see?

Several times we have posted images that reflect the realities of life within the U.S. prison system — for instance, photos of the impacts of overcrowding, life in juvenile detention centers, prison cemeteries, and the fate of prisoners during Hurricane Katrina. Alexander A. sent in a link to another striking collection of images of the corrections system. Josh Begley, a master’s student at NYU, collected aerial views of correctional facilities available from Google. His resulting project, Prison Map, makes visible an element of our society that most people rarely think about as actual, physical locations existing on the landscape. I’ve picked a few examples here, but I highly recommend going to the Prison Map website and looking at it in its entirely, which allows you to pick up on common patterns in the design of prisons.

Also check out the article about the Prison Map project at The Atlantic.

NASA has posted a series of pairs of satellite images that show a range of changes around the world. They’re great for illustrating human-environment interactions; some of the changes are directly human-caused, while others, while others show the changing consequences of floods and fires as our settlement and agricultural patterns change.

For those of us living in Las Vegas, these images of the shrinking Lake Mead reservoir, which provides water and electricity, is not reassuring. The reservoir has gotten smaller due to multiple factors, including a long-term drought and more water being taken from the Colorado River upstream:

Deforestation in Niger, as land has increasingly been turned over to agriculture:

Here, we see increasing urban growth around Denver International Airport, which now takes up 53 square miles of what used to be farmland:

Algal blooms due to agricultural and household runoff into Lake Atitlan, Guatemala:

Changes to the Sonoran coastline in Mexico due to shrimp farming:

The dramatic shrinking of the Aral Sea, largely due to the amount of water taken out of rivers for irrigation:

The full set of 167 paired images is really striking, and if viewed in the “all images” layout, you can select among various topics, focusing on cities, water, human impacts, and so on.

Erin Hatton sent in a 1937 redlining map of Philadelphia, so I decided to update our earlier post on segregation and redlining in the city.

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One historical cause of residential segregation was redlining. Lenders would color-code different neighborhoods on residential maps; red was generally the color used to designate a neighborhood as “dangerous,” meaning mortgages would not be approved in those areas, since they were considered to be high-risk areas for mortgage defaults. This was generally a blanket rule: people found themselves unable to get mortgages to buy property in redlined areas, regardless of their income or the value of the particular house they wanted to buy. And a high proportion of Black (and sometimes White immigrant) residents generally meant that a neighborhood would be automatically tagged as a high-risk area.

The University of Pennsylvania Redlining in Philadelphia project provides an example of a map created to guide lending in Philadelphia. The map was created in 1934 by J.M. Brewer, who owned a real estate consulting company and later was chief appraiser for Metropolitan Life Insurance.

This legend was adapted from the original for the U. of Pennsylvania website:

The legend looks like the “colored” areas are coded yellow, but it’s actually red on the map. Brewer created another map in 1935 and helped draw the federal Home Owners’ Loan Corporation (HOLC) map of Philadelphia in 1937.

Erin Hatton sent a link to that 1937 HOLC map, which reflects the governmental institutionalization of racism, marking some groups as inherently undesirable:

If you go to Redlining Philadelphia and click on areas of the map, it links to the survey sheets used to rate each neighborhood. All include a section on detrimental elements and a demographics breakdown, with areas to note the presence of immigrants, African Americans, poor families, and so on, such as this section of a survey sheet for area 22, giving a security grade of D:

African Americans were not the only group targeted by redlining. For instance, the survey sheet for area 5 mentions the “danger of Jewish encroachment”:

Redlining made it difficult for Blacks (and some White ethnics) to buy homes. Racial discrimination meant Blacks often couldn’t buy homes outside Black neighborhoods, but Black neighborhoods were often redlined by lenders, meaning Blacks couldn’t get mortgages to buy houses inside them, either. As a result, African Americans were disproportionately barred from one of the major avenues to acquiring wealth (building equity through home ownership), leading to increasing racial disparities in wealth and home ownership over time.

Also check out our post on segregated Durham.

In just 6 1/2 minutes, CGP Gray offers a humorous and info-packed account of Daylight Savings.  He tackles the historical rationale, the role of the equator, the contemporary debate, and the wildly wacky situations it causes today (far more wacky than you probably imagine). Enjoy:

Also from CGP Gray:

• What the Bleep is the United Kingdom?!
• The Economics of Royalty
• The Social Construction of the Continents

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Lisa Wade is a professor of sociology at Occidental College. You can follow her on Twitter and Facebook.

Trudi Abel, who directs the Digital Durham Project at Duke University, sent in a map she thought we might like to post. Created by the Department of Public works in Durham, NC, in 1937, the map illustrates the legal and taken-for-granted racial segregation of the time. The map indicates which parks and residential areas were for Whites and which for African Americans:

The map:

Obviously you can’t see much, other than a general idea of which parts of town each race lived in. Go to the Digital Durham website and click on the map for a version that lets you zoom in to read all the details.

You might also want to check out our posts on a 1934 redlining map of Philadelphia and 2010 Census data on segregation.

In the 3 1/2 minute video below, CGP Gray explains the nonsense behind the word “continent.”  It’s a cultural construct, with some geological rationale, but not enough to rationalize the seven that we recognize.

Also from CGP Gray: What the Bleep is the United Kingdom?! and The Economics of Royalty.

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Lisa Wade is a professor of sociology at Occidental College. You can follow her on Twitter and Facebook.