Both maps below show Tanzania highlighted. At 6° Mercator inflates Tanzania by only about 1%, so the two maps largely agree on it. Watch what the old map does to Mozambique beside it. That contrast is why the new world map matters.
At 6°, Tanzania 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.
Tanzania: key figures
| True area | On the old Mercator map | Distortion vs truth |
|---|
| Tanzania | 947,303 km² | 958,765 km² | 1.01× |
| Greenland | 2,166,086 km² | 25,576,494 km² | 11.8× |
| Africa | 30,370,000 km² | n/a | n/a |
Old maps drew Tanzania at about 958,765 km². The truth is 947,303 km², a difference of 1% that school atlases carried for centuries.