Derah

The Derah , also Emmet, was a measure of length in Eritrea . The measure should not be confused with the Egyptian measure Derali , which was called Derah with the middle name.

• 1 Derah = 0.46 meters

literature

• Edward Wight Washburn : International Critical Tables of Numerical Data, Physics, Chemistry and Technology. Volume 1, Mc Graw-Hill Book Company Inc., New York 1926, p. 6.
• United States. Hydrographic Office: Sailing Directions for the Red Sea and the Gulf of Aden, Including the Suez Canal, the Gulf of Suez, the Gulf of Akaba, the Southeastern Coast of Arabia as Far as Ras Al Hadd, the Coast of Africa from Ras Asir to Ras Hafun, and the Islands Eastward of Ras Asir. Volume 157, US Government Printing Office, 1943, p. 24.