I found this in an old issue of Notes and Queries and thought I would pass it along:
There is a curious tradition existing in Mansfield, Woodhouse, Bulwell, and several other villages near Sherwood Forest, as to the origin of pancakes on Shrove Tuesday. The inhabitants of any of these villages will inform the questioner that when the Danes got to Linby all the Saxon men of the neighboring villages ran off into the Forest, and the Danes took the Saxon women to keep house for them. This happened just before Lent, and the Saxon women, encouraged by their fugitive lords, resolved to massacre their Danish masters on Ash Wednesday. Every woman who agreed to do this was to bake pancakes for their meal on Shrove Tuesday as a kind of pledge to fulfill her vow. This was done, and that the massacre of the Danes did take place on Ash Wednesday is a well-known historical fact.
Notes and Queries, June 4, 1859