During the Middle Ages , the fall of the Roman empire led to a shift in the evolution of geography from Europe to the Islamic world .  Muslim geographers such as Muhammad al-Idrisi produced detailed world maps (such as Tabula Rogeriana ), while other geographers such as Yaqut al-Hamawi , Abu Rayhan Biruni , Ibn Battuta , and Ibn Khaldun provided detailed accounts of their journeys and the geography of the regions they visited. Turkish geographer, Mahmud al-Kashgari drew a world map on a linguistic basis, and later so did Piri Reis ( Piri Reis map ). Further, Islamic scholars translated and interpreted the earlier works of the Romans and the Greeks and established the House of Wisdom in Baghdad for this purpose.  Abū Zayd al-Balkhī , originally from Balkh , founded the "Balkhī school" of terrestrial mapping in Baghdad .  Suhrāb, a late tenth century Muslim geographer accompanied a book of geographical coordinates, with instructions for making a rectangular world map with equirectangular projection or cylindrical equidistant projection.  [ verification needed ]
Keep an Eye on the Time
We have suggested the amount of time you should spend on each question or activity. While these times are merely guidelines, you should keep an eye on the clock, particularly if you are watching a live broadcast. You may want to set a kitchen timer before you begin Getting Ready to ensure that you won't miss the beginning of the video. If you are watching the workshops on videocassette or DVD, you will have more flexibility if your discussions run longer.
Using the Most Currently Available Information. Analyzing economic freedom annually enables the Index to include the most recent information as it becomes available country by country. A data cutoff date is used so that all countries are treated fairly. As described above, the period of study for the current year’s Index considers all information as of the last day of June of the previous year (in this case, June 30, 2016). Any new legislative changes or policy actions effective after that date have no positive or negative impact on scores or