But the relation of East and West during the Crusades was not merely hostile or negative.
But in the Crusades we already see an event occupying its definite place in history and without which we cannot imagine the modern history of Europe, though to the chroniclers of the Crusades that event appeared as merely due to the will of certain people.
" Before the crusades the Jews had practically a monopoly of trade in Eastern products, but the closer connexion between Europe and the East brought about by the crusades raised up a class of merchant traders among the Christians, and from this time onwards restrictions on the sale of goods by Jews became frequent " (op. cit.).
Nowhere was the call responded to with greater zeal than in the Netherlands, and nowhere had the spirit of adventure and the stimulus to enterprise, which was one of the chief fruits of the crusades, more permanent effects for good.
The Crusades had a favourable influence on the intellectual state of the Western nations.