Does the byzantine empire have to do with a person, group, event, location, or a idea/concept?

Location/idea-concept is the answer. Location is where it started, but that seemed like an era in history with people so I would go with idea/concept.

Explanation:

Please read the answer above for further detail.

apart from forcing jews to live in ghettos, nazis also ensure forced labour for the jews.

the quality of life in ghettos was inhuman and very unhealthy.

those who lived in ghettos died due to starvation, or at times sent to concentration camps to be killed. they were forced to work for german reich, who was responsible for overlooking the daily proceedings at the ghetto.

c, they united with once