BC (BCE): Before Christ or Before Common Era
AD (CE): Anno Dominae (in the year of our lord) or Common Era
When was year zero?
1. Increased isolation of cultures. This might be from fear, threat of conquest, threat of war, fall of empires, or poverty.
Did you eat
1. Knowledge - how to inspect the natural world. 2. Surplus crops sold for $$$. 3. The Christian Church splits in Europe / Establishment of the concept of the “Nation State”.
4. Banking/Profit = Renaissance