Re: Acres, Hectars and why?

Posted by Hermit on May 12, 2006 at 18:15:42 from (69.21.48.40):

In Reply to: Acres, Hectars and why? posted by IaGary on May 12, 2006 at 04:51:25:

And to get really technical, this is from the University of North Carolina website dictionary.

acre (ac or A)
a unit of area used for measuring real estate in English-speaking countries. "Acre" is an Old English word meaning a field. The acre was originally defined as the area that could be plowed in a day by a yoke of oxen. It was in use in England at least as early as the eighth century, and by the end of the ninth century it was generally understood to be the area of a field one furlong (40 rods or 10 chains) long by 4 rods (or 1 chain) wide. Thus an acre is 10 square chains, 160 square rods, 43 560 square feet or 4840 square yards. There are exactly 640 acres in a square mile. In metric countries the unit corresponding to the acre is the hectare, which is 10,000 square meters (the area of a square 100 meters on each side). One acre is equal to 0.404 687 3 hectare. Among traditional European land area units, the acre is typical in being defined as a day's work but unusual in not being visualized as the area of a square. Similar units include the French journal, north German and Dutch morgen, south German and Swiss juchart, Austrian joch, and Czech jitro.

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