‘discovered’ historical pictures (exact matches)

Vercingetorix
Vercingetorix
Nehsi, the pioneer explorer of ancient Egypt
Nehsi, the pioneer explorer of ancient Egypt
Expedition to the Arctic by English explorer Henry Hudson, 1607–1611
Expedition to the Arctic by English explorer Henry Hudson, 1607–1611
The Slave Trade in the East, the Adventures of a Slave-Girl
The Slave Trade in the East, the Adventures of a Slave-Girl
Discovery of the prehistoric cave paintings of Lascaux, France
Discovery of the prehistoric cave paintings of Lascaux, France
Penicillin was first mass produced in America
Penicillin was first mass produced in America
Halley enquiring of Newton
Halley enquiring of Newton
The child Handel
The child Handel