” a span between about 2500 BCE and 50 CE”
Eh, so what exactly is the criteria for dating something as BCE or CE? What is the dividing point?
(Can that even be spoken?)
How about BCE= Before Christ’s Emancipation, CE= Christ’s Emancipation?
Simply follow the convention established by the Venerable in 700 AD, but convert AD to CE and BC to BCE. CE = 'common era'. BCE = 'before the common era', AD = Anno Domini = 'In the year of our Lord', BC = 'before Christ'. In other words is academic anti-Christian bigotry writ large.