Alright, let me give you a history lesson.
Rhodesia was an unrecognized state and it's located in Africa. In 1911, there was a territory of the British South Africa Company called Northern Rhodesia (Today Zambia) later in 1924, it became a protectorate of the United Kingdom. Southern Rhodesia (Today Zimbabwe) was established in 1923 and consisted of the British South Africa Company. It was a self-governing British colony. In 1953, Northern and Southern Rhodesia united with Nyasaland (Today Malawi) and called themself as Federation of Rhodesia and Nyasaland but in 1963, it dissolved. 1 Year later, Northern Rhodesia became Zambia. Same with Southern Rhodesia which removed the word "Southern" in their name. Which existed as British Colony before 1965 and then, became an Independent nation. Later in 1970 became Zimbabwe Rhodesia which existed for 1 year. And finally, 1980, Zimbabwe Rhodesia became just Zimbabwe.