A dunam (Ottoman Turkish, Arabic: ; ; ), also known as a donum or dunum and as the old, Turkish, or Ottoman stremma, was the Ottoman unit of area equivalent to the Greek stremma or English acre, representing the amount of land that could be ploughed by a team of oxen in a day. The legal definition was "forty standard paces in length and breadth", but its actual area varied considerably from place to place, from a little more than in Ottoman Palestine to around in Iraq. The unit is still in use in many areas previously ruled by the Ottomans, although the new or metric dunam has been redefined as exactly one decare (), which is 1/10 hectare (1/10 × ), like the modern Greek royal stremma. History The name dönüm, from the Ottoman Turkish dönmek (, "to turn"), appears to be a calque of the Byzantine Greek stremma and had the same size. It was likely adopted by the Ottomans from the Byzantines in Mysia-Bithynia. The Dictionary of Modern Greek defines the old Ottoman stremma as approximately , but Costas Lapavitsas used the value of for the region of Naoussa in the early 20th century. Definition Albania, Bosnia and Herzegovina, Serbia, Montenegro In Bosnia and Herzegovina and also Serbia, the unit is called dulum (дулум) or dunum (дунум). In Bosnia and Herzegovina dunum (or dulum) equals . One dulum is equal to for the region of Leskovac, south Serbia. In Albania it is called dynym or dylym. It is equal to . Bulgaria In Bulgaria, the decare (декар) is used. Cyprus In Cyprus, a donum is or 14400 square feet. In the Republic of Cyprus older Greek-Cypriots also still refer to the donum using the local Greek Cypriot dialect word σκάλες [skales], rather than the mainland Greek word stremma (equivalent to a decare). However, since 1986 officially Cyprus uses the square metre and the hectare. A donum consists of 4 evleks, each of which consists of or 3.600 square feet. Greece In Greece, the old dönüm is called a "Turkish stremma", while today, a stremma or "royal stremma" is exactly one decare, like the metric dönüm. Iraq In Iraq, the dunam is . Levant and Turkey In the Levant and Turkey, the dunam is , which is 1 decare. From the Ottoman period and through the early years of the British Mandate for Palestine, the size of a