"take possession before Michaelmas"
Archangel Michael
Creative Commons AttributionArchangel Michael - Credit: Renaissance, Flickr

A Christian feast on 29 September, especially celebrated in the United Kingdom and Ireland, in honour of the archangel Michael.

It celebrates Michael's defeat of Lucifer and Lucifer's banishment from Heaven.

Some sources suggest Michaelmas used to fall on 10 or 11 October.