The Madrasa System emerged in the 11th century as a formalized institution of Islamic higher education, transforming how religious knowledge was transmitted and institutionalized. Unlike earlier informal study circles (halqas) in mosques, madrasas were endowed institutions with dedicated buildings, libraries, student housing, faculty salaries, and standardized curricula. The Seljuk vizier Nizam al-Mulk pioneered this model, establishing the Nizamiyya madrasas across the Abbasid Empire (Baghdad, Nishapur, Isfahan, etc.) starting in 1065 CE. These institutions promoted Sunni orthodoxy, trained government officials, and created a class of scholarly 'ulama. The madrasa curriculum centered on Quran, Hadith, jurisprudence (fiqh), Arabic language, and theology (kalam), sometimes including mathematics, medicine, and philosophy. Students studied under multiple professors, receiving a license (ijaza) authorizing them to transmit knowledge. The system emphasized memorization, textual analysis, and debate. Madrasas were funded through charitable endowments (waqf), ensuring financial independence and perpetuity. Major madrasas like Baghdad's Mustansiriya (1234 CE) and Cairo's madrasas within Al-Azhar became prestigious centers attracting international students. The madrasa system standardized Islamic education, created professional religious scholars, and preserved scholarly traditions across generations. It influenced European university development-the word "college" shares institutional features with madrasas. However, critics note that overemphasis on transmitted sciences may have marginalized rational sciences in some contexts. The madrasa system demonstrates Islam's commitment to institutionalizing knowledge transmission, creating sustainable structures for preserving and advancing learning. It shaped Islamic civilization's intellectual character, producing scholars whose works remain authoritative. Madrasas continue functioning across the Muslim world, adapting to modern contexts while maintaining traditional methods.