World                   World country polygons
add_description         Add description of the map.
add_entities            Add entities.
add_links               Add links.
add_markers             Add markers.
add_periods             Add Periods.
add_tutorial            Adds a tutorial for the map.
create_map              Interactive map.
get_location            Get location coordinates.
list_providers          Get location coordinates.
locations               Data: Birthplaces locations of classical
                        sociologists.
sociologists            Data: Classical sociologists.
