Question: What subject was studied in the city Adel al-Zubeidi died ?

full_context: Document 1: Ancient Near East: The ancient Near East was the home of early civilizations within a region roughly corresponding to the modern Middle East: Mesopotamia (modern Iraq, southeast Turkey, southwest Iran, northeastern Syria and Kuwait), ancient Egypt, ancient Iran (Elam, Media, Parthia and Persia), Anatolia / Asia Minor and Armenian Highlands (Turkey's Eastern Anatolia Region, Armenia, northwestern Iran, southern Georgia, and western Azerbaijan), the Levant (modern Syria, Lebanon, Palestine, Israel, and Jordan), Cyprus and the Arabian Peninsula. The ancient Near East is studied in the fields of Near Eastern archaeology and ancient history.
Document 2: Adel al-Zubeidi: He was killed on November 8, 2005, by three gunmen driving in either an Opel or a "government vehicle" outside Adil, a Sunni neighbourhood of Baghdad. He was traveling with Thamer Hamoud al-Khuzaie, another lawyer associated with the trials who was wounded in the attack. The day before, he had predicted he would be murdered.
Document 3: Muammar Gaddafi: A Misratan militia took Gaddafi prisoner, beating him, causing serious injuries; the events were filmed on a mobile phone. A video appears to picture Gaddafi being poked or stabbed in the rear end "with some kind of stick or knife" or possibly a bayonet. Pulled onto the front of a pick-up truck, he fell off as it drove away. His semi-naked, lifeless body was then placed into an ambulance and taken to Misrata; upon arrival, he was found to be dead. Official NTC accounts claimed that Gaddafi was caught in a cross-fire and died from his bullet wounds. Other eye-witness accounts claimed that rebels had fatally shot Gaddafi in the stomach; a rebel identifying himself as Senad el-Sadik el-Ureybi later claimed responsibility. Gaddafi's son Mutassim, who had also been among the convoy, was also captured, and found dead several hours later, most probably from an extrajudicial execution. Around 140 Gaddafi loyalists were rounded up from the convoy; tied up and abused, the corpses of 66 were found at the nearby Mahari Hotel, victims of extrajudicial execution. Libya's chief forensic pathologist, Dr. Othman al-Zintani, carried out the autopsies of Gaddafi, his son and Jabr in the days following their deaths; although the pathologist initially told the press that Gaddafi had died from a gunshot wound to the head, the autopsy report was not made public.
Document 4: History of mathematics: Babylonian mathematics refers to any mathematics of the peoples of Mesopotamia (modern Iraq) from the days of the early Sumerians through the Hellenistic period almost to the dawn of Christianity. The majority of Babylonian mathematical work comes from two widely separated periods: The first few hundred years of the second millennium BC (Old Babylonian period), and the last few centuries of the first millennium BC (Seleucid period). It is named Babylonian mathematics due to the central role of Babylon as a place of study. Later under the Arab Empire, Mesopotamia, especially Baghdad, once again became an important center of study for Islamic mathematics.
Document 5: Sheikh Fateh: Sheikh Mohammad Fateh al Masri was a leader of al-Qaeda in Afghanistan and Pakistan, referred to by the group as Khorasan, who replaced Mustafa Abu al-Yazid after the latter was killed in May 2010. On September 28 of the same year, it was reported that Sheikh Fateh al Masri was killed by a US drone attack in North Waziristan, Pakistan.
Document 6: Abu Hamza Rabia: According to American intelligence officials, Rabia was al-Qaeda's third in command. Few details have been made available about his background, although CNN reports confirmed his Egyptian origins and indicated that he was in his thirties. He and four other men, two of them also Arabs, were killed in the village of Asoray, near Miranshah, the capital of North Waziristan. His death stirred controversy because it was Pakistani policy that US forces were not allowed in the country.
Document 7: History of science: In mathematics, the Persian mathematician Muhammad ibn Musa al-Khwarizmi gave his name to the concept of the algorithm, while the term algebra is derived from al-jabr, the beginning of the title of one of his publications. What is now known as Arabic numerals originally came from India, but Muslim mathematicians did make several refinements to the number system, such as the introduction of decimal point notation. Sabian mathematician Al-Battani (850-929) contributed to astronomy and mathematics, while Persian scholar Al-Razi contributed to chemistry and medicine.
Document 8: Taliban insurgency: After the May 2011 death of Osama bin Laden in Pakistan, many prominent Afghan figures were assassinated by the insurgents, including Mohammed Daud Daud, Ahmed Wali Karzai, Jan Mohammad Khan, Ghulam Haider Hamidi, Burhanuddin Rabbani and others. In response to this, major operations were started inside Afghanistan against the insurgents. These are intended to disrupt the network of the insurgents and force them to the negotiation table.
Document 9: Fazaldad Wahla: A US-trained orthodontist by profession, he was killed on September 24, 1999 at his home in Angoori, Pakistan while attempting to settle a dispute involving a runaway village girl. A young girl ran away from home and her family, "shamed" by this action, attempted to kill the girl. Fazaldad Wahla tried to step in and save her, and was killed by the family.
Document 10: Adnan al-Ghoul: Al-Ghoul lived in hiding and never spoke to the media. Pictures of the 46-year-old father of four were released by Hamas only after his death. On 26 September 2003, he reportedly attended a meeting with Mohammed Deif, Ismail Haniya, one of Hamas' political leaders, and the organisation's spiritual leader, Sheik Ahmed Yasin, when Israeli forces bombed the house where they gathered. Al-Ghoul's eldest son Bilal was killed in a 2001 air strike in Gaza, and his second son Mohammed was killed the following year along with a cousin during a botched raid in the family home in Maghazi, south of Gaza City.
Document 11: History of science: From their beginnings in Sumer (now Iraq) around 3500 BC, the Mesopotamian people began to attempt to record some observations of the world with numerical data. But their observations and measurements were seemingly taken for purposes other than for elucidating scientific laws. A concrete instance of Pythagoras' law was recorded, as early as the 18th century BC: the Mesopotamian cuneiform tablet Plimpton 322 records a number of Pythagorean triplets (3,4,5) (5,12,13). ..., dated 1900 BC, possibly millennia before Pythagoras,  but an abstract formulation of the Pythagorean theorem was not.
Document 12: Muslim world: The Islamic Golden Age coincided with the Middle Ages in the Muslim world, starting with the rise of Islam and establishment of the first Islamic state in 622. The end of the age is variously given as 1258 with the Mongolian Sack of Baghdad, or 1492 with the completion of the Christian Reconquista of the Emirate of Granada in Al-Andalus, Iberian Peninsula. During the reign of the Abbasid caliph Harun ar-Rashid (786 to 809), the legendary House of Wisdom was inaugurated in Baghdad where scholars from various parts of the world sought to translate and gather all the known world's knowledge into Arabic. The Abbasids were influenced by the Quranic injunctions and hadiths, such as "the ink of a scholar is more holy than the blood of a martyr," that stressed the value of knowledge. The major Islamic capital cities of Baghdad, Cairo, and Córdoba became the main intellectual centers for science, philosophy, medicine, and education. During this period, the Muslim world was a collection of cultures; they drew together and advanced the knowledge gained from the ancient Greek, Roman, Persian, Chinese, Indian, Egyptian, and Phoenician civilizations.
Document 13: History of science: In Babylonian astronomy, records of the motions of the stars, planets, and the moon are left on thousands of clay tablets created by scribes. Even today, astronomical periods identified by Mesopotamian proto-scientists are still widely used in Western calendars such as the solar year and the lunar month. Using these data they developed arithmetical methods to compute the changing length of daylight in the course of the year and to predict the appearances and disappearances of the Moon and planets and eclipses of the Sun and Moon. Only a few astronomers' names are known, such as that of Kidinnu, a Chaldean astronomer and mathematician. Kiddinu's value for the solar year is in use for today's calendars. Babylonian astronomy was "the first and highly successful attempt at giving a refined mathematical description of astronomical phenomena." According to the historian A. Aaboe, "all subsequent varieties of scientific astronomy, in the Hellenistic world, in India, in Islam, and in the West—if not indeed all subsequent endeavour in the exact sciences—depend upon Babylonian astronomy in decisive and fundamental ways."
Document 14: Hilal Al-Ahmadi: Hilal Al-Ahmadi (1954? – 17 February 2011), who was an Iraqi veteran journalist with over 30 years of experience and well known for his reports about corruption, was assassinated in front of his home east of Mosul, Iraq.
Document 15: Mesopotamia: Mesopotamia is a historical region in West Asia situated within the Tigris -- Euphrates river system, in modern days roughly corresponding to most of Iraq plus Kuwait, the eastern parts of Syria, Southeastern Turkey, and regions along the Turkish -- Syrian and Iran -- Iraq borders.
ground_truth: Islamic mathematics
sub_queries: Adel al-Zubeidi >> place of death Answer: Baghdad
What subject was studied in Baghdad ? Answer: Islamic mathematics