What made the three cities listed below important in the Muslim world? -Baghdad

-Cairo

-Cordoba

1. All were located on the Tigris river
2. All were Mediterranean ports
3. All were centers for Muslim learning
4. All were sites of military battles

The most important thing about these cities is that they are all centers for Muslim learning.

c. it required that townships set aside land for public schools.

i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

hope this ! : )