In the 1880s, the US Census had a problem. They were required, by law, to produce a census every ten years—but the previous census had taken eight years, and the next census was likely to take even longer.

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Installing Sets of Gems with Bundler

  • David Berube

摘要

In the 1880s, the US Census had a problem. They were required, by law, to produce a census every ten years—but the previous census had taken eight years, and the next census was likely to take even longer.