stremmata; Greek: στρέμμα, strémma) is unit of land area used mainly in Greece and Cyprus, equal to 1,000 square metres or approximately ¼ acre.
It was originally defined as the area plowed by a team of oxen in a day[1] but was nominally standardized as the area enclosed by a square 100 Greek feet (pous) to a side.
The Byzantine or Morean stremma continued to vary depending on the period and the quality of the land, but usually enclosed an area between 900–1,900 m2 (9,700–20,500 sq ft).
[2] It was originally also known as the "plethron" but this was eventually replaced by "stremma", derived from the verb for "turning" the ground with a Byzantine plow.
[4] Again, this varied by region: some values include 1,270 m2 (13,700 sq ft),[5] and 1,600 m2.