Persians use windmills for irrigation  Events 600: Smallpox spreads from India into Europe. 602: The Third Chinese domination of Vietnam starts following the collapse of the Early Lý dynasty. 603: Last mention of the Roman Senate in Gregorian Register. It mentions that the senate acclaimed the statues of emperor Phocas and empress Leontia. 606: Pope Boniface III elected to the papacy on the death of Pope Sabinian. He sought and obtained a decree from Byzantine Emperor Phocas which stated that “the See of Blessed Peter the Apostle should be the head of all the Churches”. This ensured that the title of “Universal Bishop” belonged exclusively to the Bishop of Rome. Germanic and Slavic peoples have tremendous population growth, with the Slavs colonizing the Balkan Peninsula. Rome continues […]