Easter witch
Easter witches (Swedish: påskkärring, 'easter hag', 'easter witch', Finland Swedish: påskhäxa, 'easter witch', Finnish: trulli, 'trulli') is an old Swedish legend about witches flying to Blockula (Swedish: Blåkulla, Blå Jungfrun) on brooms on the Thursday before Easter (Maundy Thursday, sv:Skärtorsdagen) or on the night between the Wednesday (Holy Wednesday, sv:Dymmelonsdag) and Thursday before, and returning on Easter. It is uncertain when the tradition of dressing up as witches began in Sweden, but the custom was widespread in western Swedish cities by the mid-19th century.