The origins of this strange dance in reality is unknown. It has been performed for 100's of years, to me so very English, yet there are a mixture of tales of its history, including Celtic, Moorish, pagan and royal stories.The Merrydowners were dancing this time in the New Years Day Parade.
I have been surprised to learn that there are Morris dance groups all over the world. I would be interested in hearing their history in your country.