122

Roman Empire

 * orders that a 72-mile (115-kilometer) wall be built in northern Britain., as it comes to be known, is intended to keep the , and other tribes at bay.
 * — The building of Hadrian's Wall begins.
 * Hadrian gives up the territories conquered in.

Asia

 * Change of era name from Jianguang (2nd year) to Yanguang of the Chinese Eastern.