This site is a database of published documents (currently comprising 733 texts) from Medieval Nubia that use any form of chronological system; it is administered at the University of Warsaw by Grzegorz Ochała, who used this data in his recently published book Chronological Systems of Christian Nubia (Warsaw, 2011). The texts are in the three primary written languages of medieval Nubia: Greek, Coptic, and Old Nubian. One can simultaneously search in several fields (e.g. language, century, content); for each returned document there is substantial data entered, including bibliography. Currently, the actual text is available only for the chronological component, but there are plans to enter all Greek, Coptic, and Old Nubian documents in full. Along with medievalnubia.info, to which Ochała is a contributor, this site will establish a firm foundation for Nubian Studies.