Baron Carter wrote:
> "the U.S. has never used Imperial"?  I thought Hassler in the
> 1830's adopted the Imperial system over the metric system.

Perhaps I should have added, "within living memory."

I know the vast majority of U.S. units correspond to Imperial ones. However,
as a whole, it is not known as Imperial, but as U.S. Customary. I believe
the War of Independence demonstrated a reluctance to acknowledge anything
called "Imperial." <g>

I realize, of course, that it's mostly just a matter of semantics, but it
remains a fact that U.S. Customary and Imperial have different fluid ounces,
different gallons, a different set of bushels, and so on. A common source of
errors has been the assumption that Imperial and U.S. Customary are exactly
the same thing.

The best way to sum it up is to say that the majority of U.S. Customary
units of weight and measure are the same as Imperial units.

Bill Potts, CMS
Roseville, CA
http://metric1.org [SI Navigator]

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