What followed was a whole series of generations in which the forms of civilization were set and crystallized in a few very simple, traditional and easily appreciated types. The whole standard of Europe was lowered to the level of its fundamentals, as it were. The primary arts upon which we depend for our food and drink, and raiment and shelter survived intact. The secondary arts reposing upon these, failed and disappeared almost in proportion to their distance from fundamental necessities of our race. History became no more than a simple chronicle. Letters, in the finer sense, almost ceased.