> Using “has been” here makes it immediately clear that you’re a non-native English speaker, Specifically, using the combination "has been ... in". Either "was

> Using “has been” here makes it immediately clear that you’re a non-native English speaker, Specifically, using the combination "has been ... in". Either "was abolished in" (simple past in the passive voice) or "has been abolished since" (present perfect in the passive voice) would work (simple past describing the event of abolition, past perfect describing the continuous state of having been abolished from the point of that event up until and continuing through the present moment) would work.