Islamic law is the academic field dedicated to the study of Sharia, the comprehensive system of religious law and ethics derived from the primary sources of Islam, the Quran and Sunnah. This research concept investigates its historical development, diverse methodologies of interpretation (usul al-fiqh), substantive rules (fiqh), and schools of thought (madhahib), analyzing their application and significance across various domains of individual and collective life throughout history and in contemporary societies.