Part 1 of Essay
Romanesque may first be sensed in new structural developments.. Sophisticated but unsatisfactory attempts to vault the great basilican naves safely, with elements of Roman, Byzantine, or Eastern origin, impelled progressive Romanesque engineers, from about 1090 onward, to invent a new type of ribbed groin-vaulted unit ....

Part 2 of Essay
.... likewise, other conservative patrons in Germany, Poland, Hungary, Italy, Spain, and Portugal. Thus, buildings that were essentially Romanesque in spirit continued to be built, even when such extraordinary Gothic works as the Amiens cathedral were under construction (begun 1220). (see also Index: Gothic architecture, music, history of) The development of proto-Romanesque in the Ottonian period culminated in the true Romanesque style represented by five magnificent churches on the international p ....