Contributions of scientists in the science of Aljgravehfa third and fourth centuries AD

Abstract

Have addressed in my research that the most important areas or branches of geographical science studied by geographers in the third and fourth centuries AD, and I would like to refer to three important observations on the above comment:First, the trends in the geographical composition of the two centuries geographers are subject to trends, including:A - Care extreme diameters of the Islamic world, where he described the regional and especially the Arab countries and limiting it to that as he had done and Astchri Balkhi, Ibn Hawqal.B - Description of geographical expansion to include neighboring countries, as do Yacoubi, and the son of Khrdazbh, and Masoudi.C - Specialization in Qatar or one region, as is the case when linguists who failed their books to describe the Arabian Peninsula or areas of them, as did Al-Hamdani, Ibn Fadlan, and Biruni.Second, the encyclopedic character, which was characterized by science and scientists in the centuries' duration of the study "made the border between science than doubled so that it can easily be Ensah to each other, this attribute has been clear in the books of geography.Third, geographers Muslims follow the experimental method in research and exploration and access to geographic information based on sound science based on observation and viewing the results and draw pictures in the new scientific facts.We would like to point out that the Andalusian benefited from curricula, books, geographic Eastern, either directly or indirectly, has excelled in this field and have the finest studies of the geography of Andalusia and Morocco in particular, and made their privacy in this section, and preceded Masharqa on some subjects of geography