 A periplus (, períplous, ."a sailing-around") is a kind of logbook recording sailing itineraries and commercial, political, and ethnological details about the ports visited.
<clarity>  A periplus (, períplous, ."a sailing-around") is a kind of logbook recording sailing itineraries and commercial, political, and ethnological details about the ports visited.
 A periplus (, períplous, ."a sailing-around") is a logbook recording sailing itineraries and commercial, political, and ethnological details about the ports visited.