What were two main effects of crusades on europe?

so the effects of the Crusades Although the crusades failed to capture Jerusalem, they had several major impacts on Western Europe. They increased the authority of the king: Sometimes nobles died in battle without leaving an heir in which case the king got their land. Kings passed taxes to pay for the crusades.

Another thing, the long term effects of the crusades included the establishment of lending institutions across the continent, standardized methods of taxation and an increase in European trade.

Explanation:

in griswold v. connecticut (1965), the supreme court ruled that a state's ban on the use of contraceptives violated the right to marital privacy.