islamic

• Islamic rules are symbolized by five obligatory acts or five pillars of islam: shahadah, salah, sawm, zakah, hajj
• Astrolabe was improved with religion in mind
• Arab astronomers of the middle ages compiles astronomical charts and tables in observatories such as those at palmyra and maragha
• they were able to determine the length of a degree, to establish longitude and latitude, and to investigate the relative speeds of sound and light
• the Arab sifr, or zero
• AL-RAZI-A celebrated alchemist and Muslim Philosopher who is also considered as the greatest physician of the ancient world
• AVICENNA Made advances in the field of Pharmacology and Clinical Practice. He also created the "holistic" approach in medicine.