Worlds first Perfect map
1000 years after Ptolemy's map
Measured earths circumference and was off by only 8%
Al-Idrisi mentioned gravity and put it in mind while making the map
He made the map for a king
First known map with lat and long
The populated countries in other maps were bigger
Uses geocentric model (everything revolves around earth)
Used mathematical equations (accurate-ish)
No bias or dominance of countries