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To Promote DIY Metric Rulers in the 18th Century, Paris Placed Meter-Long Marble Blocks on Public Buildings
Wow. I had no idea what a meter was derived from, or that the metric system was tied in with the French revolution. But i do remember a teacher at school used to tell us that the term 'Ruler' came about since dimensions were at one stage based on the prevailing monarch's body parts (feet, hands, etc.). I always thought it was a cool anecdote, and this article seems to confirm it. Would definitely be interested to read a deeper dive into the history of units of measurement...
As someone who grew up in Mexico and now lives in the USA, I'm constantly asking out loud: How many ounces in a pint? How many in a gallon? How do you divide in three 11 3/8"? And it's so imprecise.
Screw sizes