Earthsea is a fictional realm originally created by Ursula K. Le Guin for her short story "The Word of Unbinding", published in 1964, that became more famous in her novel A Wizard of Earthsea, first published in 1968.
Earthsea is an imaginary kingdom in the short story book “The world of Unbinding” by Ursula K. Le Guin.  This book was first published in 1964. The story received more fame in her novel A wizard of Earthsea published in 1968.