| http://www.w3.org/ns/prov#value | - I was taught, as a child, that the practice of making and eating pancakes on Shrove Tuesday had its origins in the days when Lent was observed more widely and strictly than today; people would use up the eggs, cream and other things that ...To continue reading this article, subscribe to receive access to all of newscientist.com, including 20 years of archive content.
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