RT @hbdchick: How many household formation systems were there in historic Europe

RT @hbdchick: How many household formation systems were there in historic Europe [1700-1926]? A view across 256 regions using partitioning…


Source date (UTC): 2019-05-20 23:38:09 UTC

Original post: https://twitter.com/i/web/status/1130618747386028032

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