. "1898-01-28"^^ . . . . . . . "Roberto Ivens"@en . "First European to cross Central Africa from coast to coast between Angola and Mozambique."@en . . . "Oeiras, Portugal"@en . . . "Portuguese"@en . . "Roberto Ivens"@pt . "Roberto Ivens"@en . . "Navy officer, explorer, geographer, colonial administrator"@en . . "Roberto Ivens (Ponta Delgada, June 12, 1850, - January 28, 1898, Dafundo, Oeiras) was a Portuguese explorer of Africa, geographer, colonial administrator, and an officer of the Portuguese Navy."@en . . "Ponta Delgada, Azores, Portugal"@en . "1850-06-12"^^ . . "Roberto Ivens (Ponta Delgada, June 12, 1850, - January 28, 1898, Dafundo, Oeiras) was a Portuguese explorer of Africa, geographer, colonial administrator, and an officer of the Portuguese Navy."@en .