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.
2014
1972
2000
1985
1987
1975
2002
2007
2008
2012
2011
2013
2010
1984
