"What about Shrove Tuesday?"
All the Shroves in Greece died out 1800 years ago or so; hunted 'em to extinction we did! The Turks tried to reintroduce an Anatolian variety, but by then we had forgotten their early Christian identity and believing them to be Mohammedan demon creatures, the Greek slaves woking on the Turkish Shrove ranches poisoned them with retsina and kokoretsi and the Turks gave it up as a bad idea.