A wedding program is a folded pamphlet (resembles a greeting card), normally with a portrait of the couple to be on the front. The wedding program keeps you informed of what has happened, is currently happening, and what's next in the wedding ceremony. The wedding program also lists the wedding party, as well as other participants of the wedding ceremony.
Examples of Wedding Programs:
Front: A picture of the bride and groom to be.
Inside Left: Wedding party and other participants
Inside Right: Order of events (songs, vows, scriptures)
Back: Placing information here is optional. A poem or bible verse is sufficient.https://edoras.duhs.duke.edu/papers/wedding_program.pdf
Wedding advertisement (1827) of alexander (von) uhden (1798-1878), prussian minister of justice, and juliane friderike auguste schlüsser (1802-1869) as theater program.