What's in a Surname?

A new view of the United States based on the distribution of common last names shows centuries of history and echoes some of America's great immigration sagas. To compile this data, geographers at University College London used phone directories to find the predominant surnames in each state. Software then identified the probable provenances of the 181 names that emerged.

via ngm.nationalgeographic.com
(To examine the map more closely, click above link)

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