I like the idea of an introduction maybe add some ancient Greek stories about a city that was fevered by the gods which have made them rich and proud but than they did an inforgivable sin so the gods cursed them and so the greatest city in Greece started to fall
By the way if you have in artist can you add same smell choses for the player avatar looks, naturally don't add something that will be of place/time he should look like a Greek man from the time what I mean is changing the hair style, face , outfit and same advantages at the start of the game that the player can choose from for example
charismatic : gets a bonus in all elections
Rich : start with more happiness
Form a noble family: start with more power