Why is Queen Liliuokalani important?

Liliʻuokalani, born Lydia Liliʻu Loloku Walania Wewehi Kamakaʻeha, was the last monarch and only queen regnant of the Kingdom of Hawaii. She was also known as Lydia Kamakaʻeha Pākī, with the chosen royal name of Liliʻuokalani, and her married name was Lydia K. Dominis.