Ibn Khallikan
The celebrated traveller came from a family from Herat. Ibn Khallikan noted: "There was neither sea nor land, plain nor mountain, to which access could be obtained, which he had not seen; and in every place to which he went, he wrote his name upon the walls, as I myself have observed in all the cities which I visited, and their number is certainly very great. To this he was indebted for his reputation and his name as a traveller became proverbial."