"Cabbage Night" in Ypsilanti

Phew. Just finished a story for this Thursday's Courier: a history of Halloween in Ypsilanti. It took a 1.5-centimeter-thick wad of newspaper printouts to research properly, from 1840 to 1950; I kid you not, and I barely submitted it in time. Do you know why Halloween used to be called "Cabbage Night" in Ypsi? Be sure to pick up a copy of the Courier this Thurs to find out! (assuming they run it---there are always last-minute issues at any paper).