What feature helped Portugal become a nation state? It sent explorers out to other countries.

It was settled by the Greeks and Romans.

It shares a border with only one other country.

Its language is the main language of another country.

It sent explorers out to other countries.

Explanation:

Portugal is one of the European countries that was among the early explorers of other regions in the world. This could be seen in the different exploration embarked on by different explorers which was sponsored by the Portuguese government.

One of the country which was explored is Angola in Africa. This exploration of other countries helped the country to become a nation State and the resources gotten from the other countries used to develop Portugal.

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