Metric System Adoption Must be Emergent

Thanks for your petition. There’s a lot of history here. Right after the Civil War, President Andrew Johnson signed legislation that made it "lawful throughout the United States of America to employ the weights and measures of the metric system in all contracts, dealings or court proceedings." In 1875, the United States was one of the original 17 nations to sign the Treaty of the Metre. Since the 1890s, U.S. customary units (the mile, pound, teaspoon, etc.) have all been defined in terms of...