You don't need some kind of antiquity POD, I mean just look at the population growth of places like the Indian Subcontinent or South-East Asia, they grew so much, both in the 20th and prior, without needing to be wanked for a millennia.The population of Europe as of 2019 is about 700 million, so we're talking about a 200% increase here. Europe would definitely require a more politically stable, economically prosperous and technologically advanced state to reach these figures. A good PoD is the Romans or the Carolingians (although the latter far worse than the former) - if any of these can unite the majority of productive agricultural land in europe (mainly france, northern italy and central/eastern Europe) and make agricultural innovations faster than OTL, European populations will explode - no wars to sap it away, economic prosperity and plenty of land to live off of. However, some problems arise with this method:
Plagues will be even more devastating to a denser europe. if the hyper-roman/carolingian empire develops some measures of hygene and proper cleaning than this might be mitigated, but larger plagues like the black plague might absolutely wreck the population.
Colonialism; europeans discovering the americas (it might be africans ITTL, but european are just as likely to discover it themselves) will give this hyper-europe a place to dump a lot of its 'surplus' population. this probably means that the americas also have a higher population ITTL, but it might make europe an ATL italy - a large chunk of it leaves for the new world, leaving the old world somewhat depopulated. However, the columbian exchange probably negates this as it will further improve population growth.
Overall, this europe will probably somewhat similar to china - a large, cohesive state with a massive population and shared language/s (probably latin if the romans are responsible for this PoD). I'm not knowledgeable enough in sociology so I can't say anything about the development of a monolithic europe, but it's probably nothing like the continent we know.
You don't need some kind of antiquity POD, I mean just look at the population growth of places like the Indian Subcontinent or South-East Asia, they grew so much, both in the 20th and prior, without needing to be wanked for a millennia.
Well the objective is too have a large population, anything else is kinda irrelevant.They are not really a good idea to wish for here.
I'm no expert but i am not so sure that this quick population growth that some Countries have had in the last 60 years, is something that we would like to wish for.
While i am sure that these are nice Countries to live in for most people, a lot of them have problems with how to create a fast enough expanding infrastructure.
At least that is something that i had read about some places.
Well the objective is too have a large population, anything else is kinda irrelevant.
Would there really be that many more? I mean compare Germany, Italy to France, France did not have much emigration and yet ended with the shorter stick of the demographic growth compared to Germany and Italy, I think the primary factor will always be fertility rates and mortality rates, not net migration rates.There would be a lot more people in Europe if so many had not moved to the Americas, Australia, New Zealand, South Africa...
Would there really be that many more? I mean compare Germany, Italy to France, France did not have much emigration and yet ended with the shorter stick of the demographic growth compared to Germany and Italy, I think the primary factor will always be fertility rates and mortality rates, not net migration rates.
Plus emigration is kinda of a given if we push demographic growth that much.
Only Europe itself or European people internationally?How can we get the European continent* to have a population of over 1.5 billion in present day?
*Current modern geographical definitions of Europe, borders of Ural Mountains, the Bosphorus and the Strait of Gibraltar.
Preferably with a POD not before 1 AD.
You don't need some kind of antiquity POD, I mean just look at the population growth of places like the Indian Subcontinent or South-East Asia, they grew so much, both in the 20th and prior, without needing to be wanked for a millennia.
What do you mean exactly?That's mainly because of industrialization, which Europe's already gone through.