Being a part of the Covenant had once meant access to great shipyards, great wealth, and even greater power.

We know of nine mines of one kind or another, a number of factories, smelters, and three great shipyards.

In the 1950s, the great shipyards along Clydeside continued to produce nearly 15 percent of the world's shipping.

The most important of the great shipyards which were producing the American cargo ships was at Hog Island in the southwest part of Philadelphia.