#c <n>Canada<l>55N100W<rad>1200<nat>Canadian<col>100 60 80 #c <n>Saskatchewan<l>54N106W<rad>400<reg>Canada #c <n>Ontario<l>49N83W<rad>600<reg>Canada #c <n>Toronto<l>4339N7920W<reg>Ontario
As you can see, places have a hierarchy. When the map is at small scales, cities are not shown. An event occurring in Toronto would then appear on the map next to the word "Ontario." At even smaller scales, events occurring in both Ontario and Saskatchewan would appear next to the word "Canada." Conversely, when the magnification is great enough to show Toronto, then Ontario and Canada are not shown. Historical items occuring in these regions will then not be shown, unless "Show Regional Items along Left" is checked in the "Map" menu. You can control the threshold size at which a region is deemed too large to show on the map with the "Grouping Strength" item in the "Map" menu.