As a muslim, I can positively say that Islam does have the pre-Islamic Arabian influences, such as loose clothing to prevent the body's curves from showing, not consuming alcohol or eating pork of obtaining animal's blood. However, there are practices that are different. Such as believing in one God, not worshipping any idol, object, or person. Believing God have no children or a wife, neither does he have any family. He is one and only, no one is like him. Not talking to a non-marram, or someone who's not your close family such as cousins, uncles, aunts, husband , or wife. Not taking intrest, since that's not your own earned money. Also praying five times a day and fasting in Ramadan. P,u'd giving as much charity as possible. If you have any other questions, feel free to ask.
There should be written law. The development of democracy was supported by Judeo-Christian ideas, which spread in two main ways: After the Jews were exiled from Israel in a.d. 70, they brought their beliefs with them to their new lands.
A traditional story about travels or adventures can be Robert Louis Stevenson's Treasure Island. It speaks of a group of pirates in search of a lost treasure and certainly includes travels and adventures.
