This engraving originates from the Yoruba Palace in Nigeria. This piece of art is probably only about 1,500 years old. Until 19th century, in the town Ife, there was a palace which belonged to the Yoruba’s king. The palace was built of black basalt. But the British colonists took the building to pieces and moved it…to the British Museum in London. Among many of the bas-reliefs found in the palace, there was this .. very strange one: the Holy Dragon of Yoruba, holding a rocket in his paws. How could Yoruba people know something about rockets?… Unless as the Yoruba story says.. their ancestors really originate from the unknown planet near Sirius.