Assertion: acre | /r/HasProperty | understood as a selion of land
Facets:
value: originally
type: TEMPORAL
Source sentences:
text: Originally, an acre was understood as a selion of land sized at forty perches (660 ft, or 1 furlong) long and four perches (66 ft) wide; this may have also been understood as an approximation of the amount of land a yoke of oxen could plough in one day (a furlong being 'a furrow long').