AD 128

By place

Roman Empire

• Emperor Hadrian visits the Roman province of North Africa, in order to inspect Legio III Augusta stationed at Lambaesis. For strategic reasons the legionnaires are located in the Aurès Mountains.
• Hadrian's Wall is completed in Britain. Built mostly of stone in the east and with a wooden palisade in the west. They construct at least 16 forts, about 15,000 legionaries digging ditches, quarrying rock and cutting stone, preventing idleness which led to unrest and rebellions in the ranks.
• Roman agriculture declines as imports from Egypt and North Africa depress wheat prices, making it unprofitable to farm and forcing many farmers off the land.
• Roman bakeries produce dozens of bread varieties, and the Romans distribute free bread for the poor.
• Hadrian begins his inspection of the provinces of Greece, Asia Minor and Egypt.

  Asia

• King Gaeru of Baekje succeeds to the throne of Baekje in the Korean peninsula.

  By topic

Arts and sciences

• The fossils of large prehistoric animals are discovered in Dalmatia.
• Pantheon, Rome is finished.