Some of the mystery stems from lack of documentation: the relevant parties wrote no personal diaries or journals, and some correspondence was destroyed.

But in the world of ordinary people, a lack of documentation really can prevent you working and leave you stuck and starving.

Other factors, including cost, lack of documentation as well as language difficulties from dialectal differences impact education for this population in general.

The evidence for this hypothesis, however, remains equivocal for lack of documentation in the archaeological record.

Its origins are discussed due to lack of documentation.