Orient and Occident: continuity and evolution in construction know-how from the 4.th to the 9.th centuries

) Our interests as architectural archaeologists has focused on the effort to determine whether the transmission of construction know-how, first in the Iberian peninsula (8.-9. cent. AD) and later throughout the 9.12. cent. in the Medieterranean Europe, was directly borrowed from Late Antiquity with autochthonous practices as has traditionally been thought in Spain, or whether Middle Eastern influences played an important role