Queen Liliuokalani: The last reigning monarch of Hawaii who tried unsuccessfully to resist U.S. annexation.
Pearl Harbor: A U.S. naval base located on Oahu Island, Hawaii; it was attacked by Japan during World War II leading directly to U.S. involvement in the war.
Sugar Plantations: Large-scale farms established for sugar production; they played a significant role in Hawaii's economy and were one reason for U.S interest in annexing Hawaii.