Baghdad ( BAG-dad or bəg-DAD; Arabic: بَغْدَاد, romanized: Baghdād, [baɣˈdaːd] ) is the capital of Iraq and the second-largest city in the Arab world after Cairo. It is located on the Tigris river. In 762 AD, Baghdad was chosen as the capital of the Abbasid Caliphate, and became its most notable major development project. Within a short time,...