After the Black Death why did cited start to grow

How diamonds came to be the gem of choice for engagement ring

If the outcome of the civil war has been different, how would that most likely have affected china?

How was the war powers resolution intended to limit presidential authority? a. congress needed to be notified of troop deployments. b. presidential authority to declare war was abolished. c. congress had to approve of military appointments. d. the president could send troops as needed to areas of crisis.