Analysis of information sources in references of the Wikipedia article "Baghdad" in English language version.
{{cite web}}: CS1 maint: numeric names: authors list (link)Jews represented 2.5 percent of 'Iraq's population and 25 percent of Baghdad's.
[...] the site located between present-day Al-Kāẓimiyyah and Al-Karkh and occupied by a Persian village called Baghdad, was selected by al-Manṣūr, the second caliph of the Abbāsid dynasty, for his capital.
The population of Hira comprised its townspeople, the 'Ibad "devotees", who were Nestorian Christians using Syriac as their liturgical and cultural language, though Arabic was probably the language of daily intercourse.
[...] the site located between present-day Al-Kāẓimiyyah and Al-Karkh and occupied by a Persian village called Baghdad, was selected by al-Manṣūr, the second caliph of the Abbāsid dynasty, for his capital.
{{cite web}}: CS1 maint: numeric names: authors list (link)The 'Ibad are tribes made up of different Arabian families that became connected with Christianity in al-Hira.