Events By Place Roman Empire Construction of the Antonine Wall begins in Scotland. Municipal doctors are named throughout the Roman Empire. Asia First year of the Hanan era of the Chinese Han Dynasty. The Chinese Taoist alchemist Wei Boyang, author of the Kinship of the Three,'s the first to describe an early form of gunpowder solution. By Topic Religion Marcion proclaims that the Old Testament's incompatible with Christianity. Births Liu Biao, Chinese governor (d. 208) Deaths… (More on 142)