Apollodorus of Damascus

Apollodorus came from Roman Syria in the 2nd century AD, arriving with methods the capital hadn't seen. He introduced Eastern structural innovations — chief among them the dome as a repeatable form — and his output was massive enough that his popularity became a fact of Imperial life. He wrote technical treatises, codifying what he knew. Few architects from antiquity left a name; he left several, including Apollodorus Mechanicus, a handle that caught because the engineering mattered as much as the beauty.