What is the primary function of a thematic map?

A thematic map primarily serves the purpose of representing statistical data or demonstrating specific themes related to the geography of an area. This type of map takes quantities or characteristics and visualizes them through various methods, such as color gradients, proportional symbols, or shading, making patterns and trends easier to identify at a glance. Thematic maps can illustrate a wide range of information, such as population density, economic indicators, environmental factors, and more, providing valuable insights for analysis and decision-making.

In contrast, the other options address different types of maps or functions. Topographic maps focus on terrain and elevation, navigation maps are designed to assist users in finding routes and locations, while maps displaying historical events highlight specific occurrences in a temporal context rather than statistical data trends.