In the early 1800s, Prussian geographer Alexander Von Humboldt and French botanist Aimé Bonpland launch an expedition to explore the Amazon region, including the Orinoco River, from Venezuela to the border of Portuguese Brazil.
1987
1998
1956
1983
2020
1981
1937
2014
1965
1973
1989
2023
1988
1982
1979
—
1980
2002