Flag of the Cook Islands Flag of the Cook Islands The flag of the Cook Islands, officially known as the Cook Islands Ensign, is based on the traditional design for former British colonies in the Pacific region. It is a blue ensign containing the Union Flag in the upper left, and on the right, fifteen stars in a ring. The Union Flag is symbolic of the nation's historic ties to the United Kingdom and to the Commonwealth of Nations. The stars stand for the fifteen islands that make up the Cook Islands (Tongareva, Rakahanga, Manihiki, Pukapuka, Nassau, Suwarrow, Palmerston, Aitutaki, Manuae, Takutea, Atiu, Mitiaro, Mauke,
History of the Cook Islands landing in the islands when he set foot on Rakahanga. 1773 — Captain James Cook explored the islands and named them the Hervey Islands. Fifty years later they are renamed in his honour by Russian Admiral Adam Johann von Krusenstern. 1821 — English and Tahitian missionaries land in Aitutaki, become the first non-Polynesian settlers. 1823 — English missionary John Williams lands in Rarotonga, converting Makea Pori Ariki to Christianity. 1858 — The Cook Islands become united as a state, the Kingdom of Rarotonga. 1862 — Peruvian slave traders took a terrible toll on the islands of Penrhyn, Rakahanga and Pukapuka