Ustym Karmaliuk, also known as the "Ukrainian Robin Hood," was a legendary figure in Ukrainian history who earned his title through his actions as a rebel leader during the 17th and 18th centuries. He led a group known as the Haydamaki, who were peasants and Cossacks fighting against Polish landlords and for social justice. Karmaliuk is remembered for his Robin Hood-like qualities, as he was known to redistribute wealth from the rich landlords to the poor peasants. His reputation as a folk hero and a symbol of resistance against oppression has been preserved in Ukrainian folklore and history. For more detailed information, you can refer to his Wikipedia page: Ustym Karmaliuk.