The correct answer is D. 80 CE – The Roman Colosseum was completed.
Explanation:
In history, C.E. stands for Common Era, which refers to the time between year 1 C.E. to modernity ( 1st century to 21st century). This term is used as a synonym of A.D., which represents the year Christ was born. Moreover, in the Common Era events are organized from the year 1 C.E. to 2020 C.E. (current year). In this context, the first event from the ones listed is the construction of the Roman Colosseum because this occurred in the year 80 CE (first century), which is before the year 1066 CE, 1919 CE, or 1993 CE.
Along the decriminalization of Christian worship during the rule of emperor Constantine, most of the territory of the Empire had Christian areas; amongst them, present Italy and Greece.
