Warfarin (Coumadin) is sometimes prescribed as a blood thinner because it is an effective vitamin K antagonist (blocks the formation of vitamin K). The activated partial thromboplastin time (PTT) measures the function of several other clotting factors, found in the intrinsic and common blood clotting pathways.
Etruscans and the early Roman monarchy made several contributions to the Roman republic. The establishment of Rome was through Romulus and Remus. Through legends, they were thought to be abandoned by their uncle, and raised up by a she wolf.
In 509 BC the Etruscans were chased from Rome, as reflected in the story of the expulsion of Tarquinius Superbus, the intervention of Lars Porsena of Clusium, and the Latin victory over Aruns Porsena's son at Aricia.