Black Monday
From BiblePortal Wikipedia
Webster's Dictionary [1]
(1): Easter Monday, so called from the severity of that day in 1360, which was so unusual that many of Edward III.'s soldiers, then before Paris, died from the cold.
(2): The first Monday after the holidays; - so called by English schoolboys.
The Nuttall Encyclopedia [2]
Easter Monday in 1351, remarkable for the extreme darkness that prevailed, and an intense cold, under which many died.
