It was the Babylon.
Explanation: If you look at this question it is quite simple. You would need to know what seas are next to the Red Sea. You will also need to know where the other seas are (nearest to Mediterranean Sea). It would be obviously be Babylon. You also spelled Babylon.
The answer that best fits the blank above is the term ANECDOTAL. From the term itself anecdotal evidences, these are evidences that are based on personal testimonies and therefore are not fully reliable and informal. Every person has different experiences and responses on a particular situation. Evidences like these would vary and therefore, we should get rid of this kind of assumption.
People paying for things when traveling in a foreign country best illustrates the need for currency exchange.