No, it was built in 1173, many centuries after the end of the Roman Empire (476 a.C.). The tower was done as part of the complex of the Cathedral, built by Pisans as a symbol â¦of their power. Pisa after the fall of the Roman Empire was a big city, the most powerful in Tuscany and, in Middle Ages, it was a Republic.
10 most extreme places on Earth. Popliteal artery entrapment syndrome is a relatively rare developmental disorder in which the popliteal artery and the gastrocnemius muscle in the calf are oriented abnormally with respect to each other.
Background. Superior mesenteric artery (SMA) syndrome is an uncommon but well recognized clinical entity characterized by compression of the third, or transverse, portion of the duodenum between the aorta and the superior mesenteric artery.This results in chronic, intermittent, or acute complete or partial duodenal obstruction.uperior mesenteric artery syndrome was first described in 1861 by Von Rokitansky, who proposed that its cause was obstruction of the third part of the duodenum as a result of arteriomesenteric compression.