A dessiatin or desyatina (Десятина) is an archaic land measurement used in tsarist Russia. A dessiatin is equal to 2400 square sazhens and is approximately equivalent to 2.702 English acres or 10,925 square metres. ... Found on http://en.wikipedia.org/wiki/Dessiatin
1) Unit of area 
A dessiatin or desyatina (Десятина) is an archaic land measurement used in tsarist Russia. A dessiatin is equal to 2400 square sazhens and is approximately equivalent to 2.702 English acres or 10,925 square metres. ...