Please help me! I’ll give brainlist!

Why have some historians rejected the labels bc and ad as laels for periods in world history

Considering the case of the two health clinics above, why do you think that trouble was brewing? there was serious competition for tech jobs at the downtown clinic. the new technology at the uptown clinic was too difficult for the staff to understand. the doctors pitted the staff of one clinic against the staff at other clinic. the staff at the downtown clinic saw that their colleagues at the uptown clinic were treated better and had more opportunity.

One of the main things that tobacco did for jamestown was to?