Abbreviations

CE/c.e. = Common/Current/Christian Era. Another way of indicating the same period is

AD, the traditional calendar era, Anno Domini.

BCE/b.c.e. = Before the Common/Current/Christian Era (an alternative to Before Christ, abbreviated BC).

The two notations (CE/BCE and AD/BC) are equivalent; thus "2013 CE" = "AD 2013" and

"399 BCE" = "399 BC".

Kings' and Queens' Names

For rulers we use Roman numbers:

Elizabeth I = Elizabeth the First

Elizabeth II = Elizabeth the Second

George III = George the Third

George IV = George the Fourth