What did american leaders learn at kasserine pass in north africa?

Match the following italian renaissance artists to their works.

Historians are concerned with the accuracy of their writings and readings but are also aware of the inability of authors to know every angle of every story biases, perspectives, beliefs, and a variety of other differences history being told by one person at a time no one being totally accurate, as hard as we try really need on this, and you^^

What are new social classes emerged due to advancement in agriculture ?