Both maps below show Zambia highlighted. At 13° Mercator inflates Zambia by only about 6%, so the two maps largely agree on it. Watch what the old map does to Zimbabwe beside it. That contrast is why the new world map matters.
At 13°, Zambia sits in the band the old map drew almost honestly. It is one of the regions Mercator quietly under-represented, and that is exactly what the new Equal Earth map restores.
Zambia: key figures
| True area | On the old Mercator map | Distortion vs truth |
|---|
| Zambia | 752,612 km² | 795,661 km² | 1.1× |
| Greenland | 2,166,086 km² | 25,576,494 km² | 11.8× |
| Africa | 30,370,000 km² | n/a | n/a |
Old maps drew Zambia at about 795,661 km². The truth is 752,612 km², a difference of 6% that school atlases carried for centuries.