Well, it is what the bible says, first book.

First story included in the old testament:
24 And God said, “Let the land produce living creatures according to their kinds: the livestock, the creatures that move along the ground, and the wild animals, each according to its kind.” And it was so. 25 God made the wild animals according to their kinds, the livestock according to their kinds, and all the creatures that move along the ground according to their kinds. And God saw that it was good.
26 Then God said, “Let us make mankind in our image, in our likeness, so that they may rule over the fish in the sea and the birds in the sky, over the livestock and all the wild animals,[a] and over all the creatures that move along the ground.”

27 So God created mankind in his own image,
in the image of God he created them;
male and female he created them.

Second story added in the old testament:
7And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul.

8And the LORD God planted a garden eastward in Eden; and there he put the man whom he had formed.