How did the Crusades change trade in Europe?

In a planned economy, which of the following does the job of market forces in order to determine the outcomes?

How would lincoln's assassination change the direction of reconstruction? the radicals used this opportunity to take control of the plans. the south refused to cooperate with any plans after lincoln his death would put an end to all reconstruction plans. lincoln was too weak to carry out his plan and now it could be carried out.

Using complete sentences, compare and contrast the leadership and accomplishments of martin luther king, jr. and frederick douglass.