Six Geese a-Laying: aka The Six days of creation.

God created the heavens and the earth

God created the sky and seas

God created the land and plants

God created the sun, moon, and stars

God created fish and birds

God created land animals and man

Was is 6 days, 6 million years, 600 million years, or even 6 billion years? No one knows but God. I don't think the actual time it took is the point of the story...