...ided with sun-dials for determining the hour, and instruments for the solstices and equinoxes. Their day had sixteen hours, commencing at sunrise. The Peruvians had also their sun-dials. One in Quito , in the form of an obelisk in the center of a circle on which was marked an east and west line, indicated the equinox. These were destroyed by the ignorant Spaniards, who thought them idolatrous. ...