The idea
Springfield
You put a column of city names on a map and Power BI drops a pin in the wrong country.
There are more than thirty Springfields in the United States alone, and a bare city name cannot tell them apart. The tool is not guessing badly; it has been given a name with no context.
Most of what makes maps work is telling Power BI what each column means before asking it to plot anything.
Check against your class slides. No Power BI material exists in the export, so this chapter is reconstructed from the outline's topic wording and the textbook.