The opening of the overland route to India again brought the west coast of Arabia into importance.
The overland mail route from England to India by way of Suez was opened in 1837.
Overland routes had now been found possible, though scarcely convenient for traffic, between all the widely separated Australian provinces.
This line, now disused, had itself superseded the overland route organized by Lieut.
This able leader, eager to reach Asuncion as quickly as possible, sent on his ships to the river Plate, but himself with a small following marched overland from Santa Catherina on the coast of Brazil to join Irala.