Babylon
Paul's original name was Saul and he was a prosecutor of Christians.
Baghdad is Baghdad, there is no former name for the city, nor Persepolis or Babylon.
Yes, before it became known as Baghdad, the city was part of the ancient region of Mesopotamia and was associated with various settlements. One of the earlier names linked to the area was "Ctesiphon," which was the capital of the Parthian Empire and later the Sassanian Empire. Baghdad was founded in the 8th century by the Abbasid Caliph Al-Mansur and has been known by this name since its establishment.
The book before Proverbs in the Bible is the Book of Psalms.
It is not a Bible name, but is a Hebrew name.
Baghdadu
The old name of Baghdad was "Madinat al-Salam," which translates to "City of Peace." Founded in the 8th century during the Abbasid Caliphate, it became a major cultural, commercial, and intellectual center of the Islamic world. The city's strategic location contributed to its growth and significance throughout history.
Saul became Paul
King David (before he became king) and King Saul's son, Jonathan.
Baghdad
no
His real name was Isa