Unfortunately, YY, that FB link just takes me to my own Events list, which this never made it onto. When I try entering the number in the FB search field, I get the following absurdity:

Track Package

FedEx: 255473407906522

Find out more on: fedex.com

    Ceilidhs in Sheffield
    www.ceilidhsoc.org/events

    ... scene will be there so you'll be able to meet lots of new fun people. If you want to join there Facebook event then go to: http://www.facebook.com/events/255473407906522/

which sounds like the Ceilidhs have been crossbred with the FedEx package tracker.