August 13– During a review of troops at Pavia, the soldiers stationed at this city murder the dignitaries present, then rage through the city, slaying anyone they suspected of being a supporter of Stilicho.
September–RexAlaric I of the Visigoths crosses the Julian Alps with an army of 30,000 men, and marches into the Roman heartland. He lays siege to Rome, and Gothic auxiliaries desert to join Alaric's forces. After much bargaining, the Senate agrees to pay him a ransom of 5,000 pounds of gold, 30,000 pounds of silver, 4,000 silken tunics, and 3,000 hides dyed scarlet.
Alaric also demands, and obtains, the freedom of 30,000 people who had been enslaved in Rome.
The Huns under Uldin cross the lower Danube and attack the Eastern Roman Empire, setting fire to frontier forts and taking control of the Castra Martis (modern Bulgaria). The Romans negotiate for peace, but Uldin demands an exorbitant gold tribute in return for his withdrawal. This demand is rejected and Anthemius forces the Huns back across the Danube.
King Yazdegerd I of Persia maintains cordial relations with the Roman Empire. He becomes an executor of Arcadius' will and is entrusted with the care of the young Theodosius II until he comes of age.
By topic
Medicine
Alaric I exacts a tribute from Rome that includes 3,000 pounds of pepper. The spice is valued for alleged medicinal virtues and for disguising spoilage in meat that is past its prime.