Thanks to this world map that shows the density of people with the surname Bul in different countries, you can get an idea not only of the popularity of the surname Bul in each country but also of the different migrations of people surnamed Bul.
The quantity of people with the surname Bul that we can find in each country can help us discern the origin of the surname Bul, as logic tells us that the place with the most people surnamed Bul will be the country or area of origin of the surname Bul.
Locating at a single glance the countries where the surname Bul is more abundant, as well as the areas of the globe where there are hardly any people with the surname Bul, is of great utility for individuals interested in surnames, and specifically in the surname Bul, as it allows them to quickly and easily visualize the data and its distribution."