William Nevins Armstrong was a nineteenth-century attorney and government official who served as the Attorney General of Hawaii during the reign of King David Kalākaua. Born in 1835, Armstrong played a significant role in the legal and political landscape of the Hawaiian Kingdom during a crucial era of international relations. He is most widely recognized for his literary contribution, Around the World with a King, which remains a key historical text. The book provides an intimate, insider account of King Kalākaua's historic 1881 world tour, during which Armstrong accompanied the monarch. Through his detailed observations, Armstrong documented the unique interactions between the Hawaiian court and various global leaders, offering readers a rare perspective on late nineteenth-century diplomacy, royal travel, and Hawaiian sovereignty.