There is no "last" country on Earth because the concept of "last" is subjective and depends on the context. For example, the last country to abolish slavery was Mauritania, while Algeria was the last country to use leaded gasoline.
Here are some examples of how the concept of "last" can be applied to countries:
- Last to abolish slavery: Mauritania (1981)
- Last to use leaded gasoline: Algeria (2021)
- Last to join the United Nations: South Sudan (2011)
The term "last" can also be used in a more figurative sense, such as referring to a country that is geographically isolated or has a unique culture. However, there is no single answer to the question of which country is the "last" on Earth.
