Original sentence: Palestine, known today as Israel and the Palestinian territories, has been known as Filastin (فلسطين) in Arabic since the earliest medieval Arab geographers adopted the then-current Greek term Palaestina (Παλαιστινη)
Edited sentence: Palestine, known today as Israel, Jordan, and the Palestinian territories; or Judea,Samaria and Gaza, has been known as Filastin (فلسطين) in Arabic since the earliest medieval Arab geographers adopted the then-current Greek term Palaestina (Παλαιστινη)