Why is the husband the head of the woman?

God ordained the husband as head because He created Adam first, with Eve in him, and later formed the woman out of Adam. This order reflects God's design, not a slave-master relationship, but the order He established by creating the man and then the woman.

Les teaches that when God created Adam, Eve was in him; later God created the woman out of Adam. Because of that creation order, God has maintained throughout human history that the husband is to be the head of the woman. Les explains this is not as a slave master, but in the order of God's things, ordained by virtue of His creating the man and then the woman, as supported by going back to Genesis.

1 Corinthians 11:3

But I would have you know, that the head of every man is Christ; and the head of the woman is the man; and the head of Christ is God.

1 Corinthians 11:8

For the man is not of the woman; but the woman of the man.

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Has God maintained that the husband is to be the head of the woman throughout human history?

Yes. Scripture indicates God has maintained throughout human history that the husband is head of the woman. This order was ordained by God, not as slave mastery, but according to His created order: He created Adam first and later formed Eve from Adam.