What is the relationship between the terms bc and ad and the terms bce and ce

BCE (Before Common Era) and BC (Before Christ) mean the same thing previous to year 1 CE (Common Era). This is the same as the year AD 1 (Anno Domini); the latter means “in the year of the lord,” (AD dating system's first year started when Jesus of Nazareth was born.)

He would most likely post his laws in the city market