Ethiopia and Senegal
The sites were the Island of Gorée in Senegal, and the Rock-Hewn Churches, Lalibela, and Simien National Park in Ethiopia. Sites were declared in all of the other countries mentioned but in the next year's list, in 1979.
Which is the first African country to have its sites declared as World Heritage Sites and what is that site?
The Messel Pit was bought by the state of Hesse, Germany, and declared a UNESCO World Heritage Site in 1995 as being the single best site for plant and animal fossils from which period?