"Before me nothing but eternal things were made, And I endure eternally"

(Canto 3, lines 7-8)

This is to say that before God created Hell, he first created angels, the heavenly bodies in the nine heavens and the four elements (air, water, earth and fire) of Greek mythology, all of which are "eternally enduring". Afterwards, when some sinful angels led by Lucifer rebelled against God and were driven out of Paradise, they were banished to Hell, which was created only then. After that did God create the Earth, animals, plants, men and all other things not "eternally enduring".