The opposition was not always limited to feats of endurance of this kind.
We know for certain that these feats, and hundreds more like them, are true.
The building of the Canadian Pacific railway through almost continuous rocks for 800 miles was one of the greatest engineering feats of modern times.
After performing several feats of valour, he was appointed by Hera to watch the cow into which Io had been transformed.
Battles became all but bloodless; diplomacy and tactics superseded feats of arms and hard blows in pitched fields.