This is a book of the formation of a Mamluk street. The street in question is that leading first east and then south from the Bâb Zuwayla, the great southern gate of Fatimid al-Qâhira. Its initial stretches were known both today and in Mamluk times as the Darb al-A mar, though most of it is not known by that name, but as the Tabbâna and as Bâb al-Wazîr Street.