I wonder where the lore for leprechauns started.
Leprechaun
A leprechaun () is a type of fairy of the Aos Sí in Irish folklore. They are usually depicted as little bearded men, wearing a coat and hat, who partake in mischief. They are solitary creatures who spend their time making and mending shoes and have a hidden pot of gold at the end of the rainbow. If captured by a human, they often grant three wishes in exchange for their freedom. Like other Irish fairies, leprechauns may be derived from the Tuatha Dé Danann. Leprechaun-like
members of the family. Popular opinion is also that she is seen as the ancestress of Irish families and is deeply concerned with the families' fortunes. It is uncertain whether the Banshee is evil or good.
Other classics include leprechauns, fairies, rainbows, Cú Chulainn, Children of Lir, Dullahan (headless horsemen), Pookas, Changelings.
Traditions.
The word folklore in French means “picturesque but without importance or without deep significance”. In Ireland the word Folk Lore has deep meaning to its people