On April 7, 1795, France adopted the metric system. As late as 1920, only about 25 percent of the world’s population was using it. But today, it has become the accepted system of measurement just ...

Mathematician and author, the Marquis de Condorcet (1743-1794) was an aristocrat who nevertheless embraced the early stage of the French Revolution. Even as the Jacobins hunted him down during the ...

Have you ever noticed that systems of measurement tends to change when you leave the United States? Weight is typically measured in kilograms instead of pounds, distance is measured in kilometers over ...