Such are the new problems and the new solutions which Christianity brought to historical thought, and it may be said of them, as of the political and humanistic thought of the ancients, that they constitute a solid possession of perpetual efficacy for the human spirit. Eusebius of Cæsarea is to be placed beside Herodotus as 'father' of modern historiography, however little disposed it may be to recognize its parents in that barbaric author and in the others who were called 'fathers of the Church,' to whom, and particularly to St Augustine, it yet owes so great a part of itself. What are our histories of culture, of civilization, of progress, of humanity, of truth, save the form of ecclesiastical history in harmony with our times--that is to say, of the triumph and propagation of the faith, of the strife against the powers of darkness, of the successive treatments of the new evangel, or good news, made afresh with each succeeding epoch? Do not the modern histories, which narrate the function performed or the pre-eminence assumed by this or that nation in the work of civilization, correspond to the _Gesta Dei per Francos_ and to other like formulas of medieval historiography? And our universal histories are such not only in the sense of Polybius, but also of the universal as ideal, purified and elevated in the Christian sense; hence the religious sentiment which we experience on approaching the solemnity of history.