The Liao Dynasty launches a major offensive against the Song Dynasty. They meet near Shanyang, north of the Song capital of Kaifeng.
Battle of Shanzhou: The Liao Dynasty general Xiao Talin is picked off by an elite Song Chinese crossbow sniper.
Europe
May 14 - Henry II is crowned Holy Roman Emperor at Pavia. A quarrel between his German companions and the Pavese erupts into a full-scale battle. Henry's war against Boleslav (1004-1018).