The history of the lower is a geographical book written by the historian Ibn Al -Majawar, the author spoke in his book about the description of the countries of Yemen, Mecca and Hijaz, and he started talking about Makkah Al -Mukarramah and then ended in Bahrain | In which he briefed on the famous navigation evidence, and learned about the science of ancient navigation that describes navigation lines and their lengths among the Arab countries Southern and Java Island