St Matthew, who was a tax collector before becoming one of Jesus’ apostles.
Joseph of Cupertino, a 17th-century Calabrian monk, who was said to have been able to levitate.
Gabriel, who broadcast the message of the birth of Jesus.
Isidore of Seville, who created a database of all knowledge in the 7th century.
Clare of Assisi, who saw and heard Christmas Mass when too ill to leave her bed.
In fact there are 80 arches, but only 76 were used by the crowds, while the other four were for the emperor and other VIPs.
The vomitoria provided a quick exit – people spewed out of them.
The velarium was an awning meant for providing shade.