I believe the answer is: a flat earth
Disortion of projecton happen when we misplace a certain location on the map after projection the location on round earth to a flat map. Since the map that is used by ptolemy is already flat, there would be no chance for a disortion of projection from happening.
Answer:
The larger tick marks appear for an event that is on the timeline and the smaller ones are basically non existent
Explanation:
Just trust me ;)
Battle of New Orleans led by the commander Andrew Jackson