Using graphic elements like this world map, to see in which countries or regions of the world the surname Gailly is more common, is of great help.
Locating at a single glance the countries where the surname Gailly is more abundant, as well as the areas of the globe where there are hardly any people with the surname Gailly, is of great utility for individuals interested in surnames, and specifically in the surname Gailly, as it allows them to quickly and easily visualize the data and its distribution."