Summer – Arnulf, Duke of Bavaria ("the Bad"), is elected as anti-king by the East-Frankish nobles in opposition to Henry I. Burchard II, duke of Swabia, submits to Henry's rule â allowing him to retain administrative control over his duchy. After an absence of nearly 15 years, the Magyars raid Bavaria and Northern Italy again, sacking the Po Valley (see Hungarian invasions of Europe).
Lady ÃÂlfwynn of the Mercians is brought to the court of her uncle, King Edward the Elder, and deprived of her authority in Mercia. Edward formally annexes the kingdom, ending independent Mercian rule.
Battle of Langshan Jiang: The Wuyue navy (500 dragon ships) under Prince Qian Yuanguan who is preparing an invasion to attack the Wu Kingdom, defeats the naval forces of General Peng Yanzhang on the Yangtze River. Due to the use of flamethrower ships (using gunpowder to ignite petrol, like Greek fire) Qian Yuanguan manages to destroy 400 enemy ships and captures 7,000 prisoners.