pleeeze commment !! History!!

for history on the study guide, under A, It says iluvatar creates valar, illuvatar sings and valar join him, morgoth counters song, Iluvatar encorporate morgoth's song into his, Illuvatar creates children. Is all this one age??? Is this broken up into the three ages? If so where is it broken up? if u answer i will pay u a dollar!! and a hug!!