I just had a look on this map.
It almost has only 1 production per town, so all goods are really rare.
It seems very hard to me to satisfy the needs of the poor population in order to keep them pleased,
as the are
the part who is working and supply of food creates beggars for sailers and workers.
I shall see this weekend if or how it can be played.
PH
Yes, this issue evolved more or less as a consequence of the hardship I had finding adequeate documentation to complete the map. It has certainly changed game mechanics, and yes, it is much harder to attract workers and build up production. Expansion and city wall building takes careful planning and a steady cash flow, as bricks are only produced in one town.
However, the constant need for everything also makes it easier to secure cash flow, since you can pretty much always sell your wares. Consumption is lower in the beginning of the game, though, so you need to travel far and wide to find those markets.
I have also found that - especially in the beginning of the game - ferrying raw materials around and letting the city production take care of processing (for example, hauling iron ore from Stockholm to Brugge, and then selling the iron ore while carefully buying up the resulting city production) is helpful to initial cash flow. Secure your monopolies as soon as you can. Perhaps piracy can help you here.
To my delight, I have found that producing salt in Germany and using it to produce fish, will - just like in real life back then - become crucial to securing supply chains and workers.
Also, the computer AI has the same difficulties, and may even find it harder to cope, since the AI is not so hot on long-term planning as you can be. The historical map thus proposes a rather different challenge.
You are encouraged to read the documentation that follows with the map. These topics are covered more fully therein.