There's multiple factors that contributed to Europe being one of the most densely populated areas in the world, and some of them are:
- Good climate conditions;
In most of the continent the climate is very nice and it allows the people to live in most of the continent. This is also very important for the agriculture and production of food, and Europe is an excellent place for that.
- Geography;
Big portions of the continent are actually fertile plains, and low hills and plateaus, which allows the development of large urban areas.
- Technological advancements;
It is the place where the industrial revolution started, and it contributed to the development of the continent much quicker than the other places in the world. It is still one of the leaders in technological advancements.
- Infrastructure;
In general, the continent has good to excellent infrastructure of all sorts.
- Natural resources;
Even though it is one of the smallest continents, it is not short of natural resources, and it actually is reach in them, like coal and fertile soil for example.
- High employment rates and solid wages;
Europe is also one of the richest areas in the world, and even though there are regional differences, in general it is well over the world average in both, employment rate and salaries.
