pancamam vedam isvarah
sarvebhya eva vaktrebhyah
itihasa—histories; puranani—the Puranas (supplementary Vedas); pancamam—the fifth; vedam—the Vedic literature; isvarah—the Lord; sarvebhyah—all together; eva—certainly; vaktrebhyah—from his mouths; sasrje—created; sarva—all around; darsanah—one who can see all time.
Then he created the fifth Veda—the Puranas and the histories—from all his mouths, since he could see all the past, present and future.
There are histories of particular countries and nations and of the world, but the Puranas are the histories of the universe, not only in one millennium, but in many kalpas. Brahma has knowledge of those historical facts, and therefore all the puranas are histories. As originally composed by Brahma, they are part of the Vedas and are called the fifth Veda.
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