Which two modern-day countries used to be known as the region of Rhodesia between the 1890s and 1980?

The region of Rhodesia between the 1890s and 1980 is now referred to as Zambia and Zimbabwe. It was initially named Northern Rhodesia and Southern Rhodesia respectively, after the British imperialist and businessman Cecil Rhodes. Northern Rhodesia gained independence from British rule in 1964 and became Zambia. Southern Rhodesia declared independence in 1965 and remained a self-governing British colony until 1980 when it gained independence and became Zimbabwe.