If the border was drawn, relying upon the 'main channel principle', the two islands would have passed to China.
But he did see one piquant detail before the circular island passed out of sight.
The islands passed back and forth between Spanish and English control.
The island passed to the Englefield family in 1606.
The islands passed under the control of the Mahra sultans in 1511.
In the following centuries, the island passed into the hands of a succession of various owners.
He got a dog-paddle rhythm going and managed to keep his head fixed toward where the other island would pass.
But at the eastern end, the oldest islands are no longer bolstered by fresh eruptions once they have moved passed the hot spot.
They surrendered without resistance and the island passed into American control.
In 1940 the island passed into private hands and was acquired by the Town of Marion in 1966.