As the activity of the present age developes itself mainly through productive and commercial industry, this collection of the choicest industrial products of all the nations of the globe, is not only in perfect accordance with the spirit of the epoch, but seems indeed to belong so properly to the present day, that it may be doubted whether such an event could have taken place at any earlier period: while the political and social conditions of Great Britain, her friendly relations with all other powers, together with the perfect security for property, the commercial freedom, and facilities of transport, which are here enjoyed in a pre-eminent degree, combine to indicate this country as the most appropriate arena for this first pacific contest of the nations; the only one, perhaps, in the actual state of Europe, in which it could have taken place at this time. The traditions of the English people, also, are such as would naturally suggest to them the idea of an enterprise of this kind; for not only have Fairs (which may be regarded as a rude attempt at a more general exhibition of wares than that afforded by the mere ordinary display of shops) been common here, as elsewhere in Europe, for many centuries, but exhibitions more nearly resembling the present Institution, in which the palm of excellence, rather than direct commerce, is the primary object, have taken place here frequently during the past century, through the enterprise of individuals, or societies, independently of any assistance from the Government. As early as the year 1756, the "Society of Arts" of London offered prizes for the best specimens of various manufactures, tapestry, carpets, porcelain, &c., and held public exhibitions of the works which were offered in competition; while about the same period, the Royal Academy, as a private society, patronized by George the Third, rather in a personal capacity than as the head of the legislature, organized its exhibitions of painting, sculpture, and engraving; and during the last thirty years exhibitions of machinery and manufactures, gotten up entirely through the efforts of private individuals, have taken place not only in the metropolitan cities, in London, Edinburgh, and Dublin, but in all the principal towns of the United Kingdom. The earliest national exhibition of industrial products in France, occurred in 1798, and was followed by others at irregular intervals until 1819, since which period they have taken place every five years, and have exercised a marked effect upon the industrial development of Europe. The brilliant character of the two last of these exhibitions (in '44 and '49), led to several ineffectual attempts on the part of the Society of Arts, and others, to interest the British Government in the getting up of a similar exhibition of the products of British industry, to be held in 1851.