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7-28-1866
Metric system approved in the U.S. The first Act of Congress legalizing the employment of the metric system was approved (14 Stat. L. 339). The act provided that it "shall be lawful throughout the United States of America to employ the weights and measures of the metric system."
More information about:
The Metric System
More information about:
The Metric System
Date:
Saturday, July 28, 1866
