Wedding Traditions, Do you know what they mean?

Do you know the history of wedding traditions that we incorporate into our
wedding celebrations? What about wedding superstitions?

Here's one historical note that I didn't know about the wedding cake. Guests would bring cakes to the wedding celebration and they would be stacked. The bride and groom would attempt to kiss each other over the top of the cakes. If they kissed, it was considered good luck.
The Romans broke cakes over the head of the bride in order to make her fertile.

For an interesting read, Wedding Chaos has a three part series on wedding traditions and superstitions. They cover everything from the stag (bachelor party), hen (bachelorette party) to the tradition of dropping flower petals. Lots of interesting stuff!