The term BC/BCE refers to

BC stands for Before Christ and BCE stands for Before Common Era. They refer to the time previous to Jesus's estimated birth year. BC is used by people who follow a religion that believes in Christ, while BCE is a more diverse way to say it for the people who do not follow a religion that believes in that.  

. political or economical policy that isolates a country from participating in international relationships. it has been suggested that the united states participates in isolationism because of its lack of involvement in particular wars or alliances.

they had more african americans than any other state.

hope this , have a good day. c;