I guess that is because fields are usually rectangular. Feudal land divisions were almost always rectangular strips.
https://en.m.wikipedia.org/wiki/List_of_medieval_land_terms
That Kentish sulung sounds very odd.
@mespilus started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I guess that is because fields are usually rectangular. Feudal land divisions were almost always rectangular strips.
https://en.m.wikipedia.org/wiki/List_of_medieval_land_terms