Most Populous Countries in 1700

Can you guess these facts about the geography of South America?

Try to name the modern-day countries whose current territory reached a population of 5 million people at the earliest date.

In 90 seconds, make every country disappear from the map by typing both its first 2 letters and its last 2 letters.

Start by naming any country that France borders. Then name any country that borders any of those countries. Then keep going until there are no more countries left to name.