Original: The year 193 opened with the murder of Commodus on New Year 's Eve , 31 December 192 and the proclamation of the City Prefect Pertinax as Emperor on New Year 's Day , 1 January 193 .
Simplified: The year 193 opened with the murder of Commodus on New Year 's Eve , 31 December 192 . The City Prefect Pertinax was proclaimed Emperor on New Year 's Day , 1 January 193 .