Baghdad was founded as the Abbasid capital in 762, became the largest city in the world, and was sacked by Hulagu in 1258.
Source The Prophet and the Age of the Caliphates: The Islamic Near East from the Sixth to the Eleventh CenturyHugh Kennedy
Al-Kindi, the first major philosopher writing in Arabic, was active in Baghdad's House of Wisdom milieu.
Source Greek Thought, Arabic Culture: The Graeco-Arabic Translation Movement in Baghdad and Early 'Abbasid Society (2nd-4th/8th-10th centuries)Dimitri Gutas
This source names Baghdad directly: "in the Najibiyyih garden outside Baghdad, later commemorated as the festival of Ridvan, and his 31 August 1868 arrival at Acre after departing Adrianople under Ottoman exile order; not the right..."
Source Baha'u'llah (Wikipedia)Wikipedia contributors
This source names Baghdad directly: "from Masha'allah in eighth century Baghdad through Abu Ma'shar's systematic elaboration to Kepler's own engagement with the tradition, including essays on Saturn-Jupiter conjunctions across medieval..."
Source From Masha'allah to Kepler: Theory and Practice in Medieval and Renaissance AstrologyCharles Burnett and Dorian Gieseler Greenbaum (editors)
Gao, Cities This source names Baghdad directly: "authority from the Abbasid caliph in Baghdad."
Source The Oxford Dictionary of World ReligionsJohn Bowker (ed.)
This source names Baghdad directly: "Graeco-Arabic Translation Movement in Baghdad and Early 'Abbasid Society, published by Routledge in 1998, is a widely cited scholarly study of the Graeco-Arabic translation movement, the sustained..."
Source Greek Thought, Arabic Culture: The Graeco-Arabic Translation Movement in Baghdad and Early 'Abbasid Society (2nd-4th/8th-10th centuries)Dimitri Gutas
This source names Baghdad directly: "alongside the house of Baha'u'llah in Baghdad, it became the third point of obligatory Baha'i pilgrimage, together with the Shrine of Baha'u'llah at Bahji and the Shrine of the Bab in Haifa."
Source A Concise Encyclopedia of the Baha'i FaithPeter Smith
Kadhimiya, in northern Baghdad, holds the tombs of the Imams Musa al-Kadhim and Muhammad al-Jawad.
Source Greek Thought, Arabic Culture: The Graeco-Arabic Translation Movement in Baghdad and Early 'Abbasid Society (2nd-4th/8th-10th centuries)Dimitri Gutas
This source names Baghdad directly: "family name points to origins near Baghdad."
Source Kitab al-Anwar wal-Maraqib (Book of Lights and Watchtowers)Ya'qub al-Qirqisani
This source names Baghdad directly: "century primary text, composed at Baghdad in the early fourth century of the Islamic calendar, and it is the actual work that fixed the number of canonical Qur'anic reading traditions at seven and..."
Source Kitab al-Sab'a fi al-Qira'at (The Book of the Seven Readings)Ibn Mujahid (Abu Bakr Ahmad ibn Musa ibn Mujahid)
This source names Baghdad directly: "horoscope for the founding of Baghdad in 762 CE under Caliph al-Mansur."
Source Mashallah ibn Athari (Wikipedia)Wikipedia contributors
This source names Baghdad directly: "horoscope cast for the founding of Baghdad in 762, and advocated the theory that conjunctions of Jupiter and Saturn mark the timing of major terrestrial and historical change."
Source Mashallah ibn Athari (Wikipedia)Wikipedia contributors
This source names Baghdad directly: "crowd crush on the Al Aimmah bridge in Baghdad during a Shia religious commemoration."
Source More than 600 killed in Iraq stampedeAl Jazeera
This source names Baghdad directly: "Garden on the Tigris outside Baghdad, known to Baha'is as the Garden of Ridvan, is where Baha'u'llah spent twelve days in April 1863 before his banishment onward to Constantinople, and where he is..."
Source A Concise Encyclopedia of the Baha'i FaithPeter Smith
Baghdad's Kadhimiya district is a major Shia Twelver shrine and pilgrimage site, distinct from the hawza cities further south.
Source Greek Thought, Arabic Culture: The Graeco-Arabic Translation Movement in Baghdad and Early 'Abbasid Society (2nd-4th/8th-10th centuries)Dimitri Gutas
This source names Baghdad directly: "article on the 1258 siege of Baghdad, community-edited."
Source Siege of Baghdad (1258) (Wikipedia)Wikipedia contributors
This source names Baghdad directly: "would proclaim his mission in Baghdad nineteen years later."
Source The Bab (Wikipedia)Wikipedia contributors
This source names Baghdad directly: "1863, Baha'u'llah left his house in Baghdad, where he had lived since an earlier exile from Persia, and entered the Najibiyyih garden on the banks of the Tigris."
Source Baha'u'llah (Wikipedia)Wikipedia contributors
This source names Baghdad directly: "Shiraz and the House of Baha'u'llah in Baghdad."
Source A Concise Encyclopedia of the Baha'i FaithPeter Smith
This source names Baghdad directly: "Khan's Mongol army besieged and took Baghdad between late January and 10 February 1258, ending five centuries of Abbasid rule as the caliphate's own political center."
Source Siege of Baghdad (1258) (Wikipedia)Wikipedia contributors