For, at the same time in which the July revolution again excited, throughout a wide circle of life, an interest in the State, a new development of German popular strength began in other spheres, especially through the industrious labours of countless individuals, in the workshop and the counter. The Zollverein--the greatest creation of Frederic William III.--threw down a portion of the barriers which had divided separate German States; the railroads and the steam-boats became the metallic conductors of technical culture from one end of the country to the other. With the development of German manufacturing activity came new social dangers, and new remedies had to be supplied by the spontaneous activity of the people. Bit by bit was the narrow system of government and of characterless officials destroyed; the nation acquired a feeling of active growth; everywhere there was a youthful interest in life; everywhere energetic activity in individuals. A free intelligence developed itself in independent men, as well as in the official order, together with other forms of culture and other needs of the people. The labour of the inferior classes became more valuable; to raise their views and increase their welfare was no longer a problem for quiet philanthropists, but a necessity for all, a condition of prosperity even for those highest in position. Whilst it was complained that the chasm between employers and the employed became greater, and the domination of capital more oppressive, great efforts were in fact being made by the zeal of literary men, the philanthropy of the cultivated, and by the monied classes for their own advantage, to increase the knowledge of the people and improve their morals. A comprehensive popular literature began to work, commercial and agricultural schools were established, and men of different spheres of interests organised themselves into associations. By example and by teaching it was endeavoured to raise the independence of the weaker, and the great principle of association was proclaimed. In the place of the former isolation, men of similar views worked together in every domain of earthly activity. It was a grand labour to which the nation now devoted itself, and it was followed by the greatest and most rapid change which the Germans have ever effected.