America’s Metric-Only Store — Think Outside the [American] Box is dedicated to United States President Andrew Johnson and to Metric Pioneer Antoine Lavoisier (1743–1794 CE) Father of Modern Chemistry, who helps construct the metric system during the French Revolution while working alongside Benjamin Franklin in France.  The modern form of the metric system is known as SI = Système International d’unités = International System of Units. The metric system of measure was first given a legal basis in 1795 CE by the French Revolutionary government.

On 28 July, The Metric Act of 1866 becomes law and legalizes the use of the metric system for weights and measures in the United States.  The Metric Act of 1866 was originally introduced as H.R. 596 in the 39th Congress.  The House passes it on 17 May 1866 CE; the Senate passes it on 27 July 1866 CE; President Andrew Johnson signs The Metric Act the next day:

“It shall be lawful throughout the United States of America to employ the weights and measures of the metric system; and no contract or dealing, or pleading in any court, shall be deemed invalid or liable to objection because the weights or measures expressed or referred to therein are weights or measures of the metric system.”

The eleventh CGPM (Conférence Générale des Poids et Mesures = General Conference on Weights and Measures) in 1960 faced the question of what to call this new reorganization and extension of measures. The name Metric System had referred to the units for length and mass. What the CGPM had created was much more comprehensive, and after some discussion, this new system was called the International System of units or SI after its French initials. For the first time, the world had not merely universal units, but a universal system of units.

American Metrication: One person at a time; start with yourself right now! Register (top left corner) now and take the Terran System Exam and work your way through the Ten Levels of the Metrication Progress CheckList (Level 1 Registered; Level 2 Beginner; Level 3 Novice; Level 4 Apprentice; Level 5 Competent; Level 6 Advocate; Level 7 Campaigner; Level 8 Ambassador; Level 9 Expert) until you achieve Level 10 Metric Pioneer. Phone 503-428-4917 for help.

Federal Metrication Petition:

State-by-State Metrication: Hawaii HB 36 and Oregon LC 44 - The only way to get Oregon LC 44 to become law is for citizens like you to bug your senator and your representative to sponsor this important legislation. What are you waiting for? Who represents me in Oregon? Sign this Oregon petition in support of LC 44:

You can also challenge yourself with these:

Math Test

Language of Mathematics – American Competency Survey

SI Trivia Survey A:

SI Trivia Survey B:

Scotland – United States – International System (SI):