known as Khan Madrasa Joyboriy Abdurahimhoja will rebuild this higher educational institution and restore the previous foundation properties. For this reason, in some sources, it is also written as Abdurahimhoja Madrasah Joyboriy Abdurahimhoja will rebuild this higher educational institution and restore the previous foundation properties. For this reason, in some sources, it is also written as Abdurahimhoja Madrasah. Currently, the names Kalabad madrasa and sometimes Gulabad Madrasah is used in most cases as alternative names for the madrasa. According to S. S. Bukhari, the word Kalabad is written and read in this way because there is no letter "g" in the Arabic language and script, and it is actually Gulabad. According to the candidate of philosophy B. B. Namozov, there is almost no difference between the names Kalabad and Gulabad, from the point of view of the Arabic language, the term Kalabad, and from the etymological point of view, it is called Gulabad in Persian. History The Kalabad Madrasa was built outside the ancient fortress of Bukhara, inside the Kalabad Gate, in the neighborhood of the same name. Scholars of Bukhara were interested in the first Madrasahs, and there were disputes between them. Sadri Zia writes on this issue: Sadri Zia said that this Madrasah was rebuilt three times. Even though there are such disputes among scholars, the history of Bukhara madrasas is almost not specifically covered in the sources. According to O. A. Sukhareva, residents of Bukhara consider Kalabad madrasa to be the oldest madrasa in the city. A. K. Jumanazar, in his monograph on the history of Bukhara education system and madrasahs, took into account the dispute between Bukhara scholars described by Sadri Zia Makhdum and includes Kalabad and Gharibiya Madrasahs among the oldest centers of knowledge in the Islamic world. The scientist's words were quoted on the official website of the Imam Bukhari International Research Center under the Cabinet of Ministers of the Republic of Uzbekistan, and it was noted that the Kalabad madrasa is the same age as the Abu Hafs Kabir madrasa and that it was built at the beginning of the 9th century, around 800-810. The waqf document of this higher educational institution dating back to the 11th century has been preserved. During the period of the Uzbek ruler Vali Muhammad (1605-1611), Joybori Abdurahimhoja rebuilt the Kalabad madrasa and presented the Arslankhan madrasa waqf document before the document he drew up when he donated