Transcription: The principles of the 20th century are known in the African stone-stone. The Sahara and the course of the Nijer, Rios and Congo is the most geographic problem. Mungo Park records 1,500 km of the Nijer River. Hugh Claperton wrote the Sahara and discovered the Lago chat. René Cagier wrote a book too and wrote the Sahara. David Livingstone Exploro Extends the Stone of South Africa. John Speake and James Granne Describe the Fountains of Rio Nilo. Gustav Nachtigal Exploro in Lagosat in the Region of the Nnedi. Henry Stanley, the African-American of Costa Rica, and I remember the Rio Congo as his ow ...
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