in order to establish or hold onto their authority within the decaying empire. Meanwhile, Dong Zhuo's former followers Li Jue and Guo Si were left to squabble amongst themselves, while Emperor Xian himself fled and returned to the ravaged city of Luoyang. In 196, he was given refuge by the warlord Cao Cao, who relocated him to the new capital city of Xu, from where he could control the emperor. Cao Cao would further exert his authority by defeating the powerful warlord Yuan Shao at the decisive Battle of Guandu in 200. Events AD 96 – 180: Five Good Emperors of Rome: Nerva, Trajan, Hadrian, Antoninus Pius and Marcus Aurelius. 100 – 200: The Grand Anicut, an ancient dam, is constructed by a Chola king. 101 – 102, 105 – 106: The Dacian Wars. After two conflicts, Dacia is annexed as a Roman province. 114 – 116: A war with Parthia results in Armenia and Mesopotamia being temporarily annexed into the Roman Empire. 115 – 117: Kitos War, adjunct to the Jewish–Roman wars. 122 – 132: Hadrian's Wall is built across what is now Northern England. 127 – 140: The Kushan ruler Kanishka ruled present-day Pakistan and northern India. 132 – 135: Bar Kokhba's revolt against Rome. 132: Chinese chronicles described the existence of diplomatic relations between Java and China. 140 – 180: Huvishka, Kushan ruler. 142 – 154: The Antonine Wall is built across what is now central Scotland. 144: Marcion, rejected by Church of Rome, founds Marcionism. 161 – 166: Roman–Parthian War of 161–166. 165 – 180: The Antonine Plague in Rome. 166 – 180: Marcomannic Wars. 166 – 184: Disasters of the Partisan Prohibitions. 180 – 192: Reign of Commodus, Roman Emperor. 184 – 205: The Yellow Turban Rebellion of the Han Dynasty in China begins. 184 – 189: The Liang Province Rebellion breakouts in Northwest China. 189 – 220: The End of the Han dynasty. 190 – 191: Warlords across China launches a campaign against Dong Zhuo. 193: Year of the Five Emperors of Rome: Pertinax, Didius Julianus, Pescennius Niger, Clodius Albinus and Septimius Severus. 193 – 211: Reign of the Roman Emperor Septimius Severus. The Kingdom of Aksum emerges. Herakleitos makes The Unswept Floor, mosaic variant of a 2nd-century BC painting by Sosos of Pergamon. It is now kept at the Musei Vaticani in Rome. 2nd or 3rd century – Standing Buddha, from Gandhara, Pakistan,