The Song dynasty is divided into Northern Song (北宋, Běi Sòng, 960-1127) and Southern Song (南宋, Nán Sòng, 1127-1279). It was an era of great technological innovation including movable type printing, gunpowder weapons, and the magnetic compass.
usage
As a surname, 宋 is among the top 25 most common Chinese surnames. Famous bearers include Song Qingling (宋庆龄), wife of Sun Yat-sen.