Indepth explanation of bc ad bce and bc​

The style guide for The Guardian says, under the entry for CE/BCE: "some people prefer CE (common era, current era, or Christian era) and BCE (before common era, etc) to AD and BC, which, however, remain our style".

Explanation:

what are local authorities doing to fix the problem

explanation:

b) the confederacy had to pay all union war expenses.