The island of Mauritius was first discovered by Arab sailors, at some time in the 9th century, the exact date is unknown. At that time the island was uninhabited and covered in a dense forest. The Arab sailors were not interested in settling on the island which they named Dina Arobi or Dinarobin. Diogo Fernandes Pereira, a Portuguese sailor found the island in 1505 and decided to give it the name of Cerne. However, the Portuguese did not settle permanently on the island either.