Um. You can totally argue that it hasn't VASTLY improved. It has improved. A bit. But not VASTLY.
Women still get 75 cents for every dollar a man makes. Women's magazines still tell women what they need to improve on in order to make a man happy (dirty happy and just generally happy). There's still a stigma against pursuing a career--career women are single, or bound for divorce, and lead sexually frustrated lives. The difference is women have also acknowledged that being a housewife doesn't necessarily provide the ultimate fulfillment they are seeking in life, so now amongst women there's also a stigma against being a stay at hone mom. We can't have both without making sacrifices men don't have to make at home or at work, but if we have either or than we're missing out on even more.
Read The Feminine Mystique. The inequality is still all around us.
Well, the right to full control of your own body.
Abortion is legal in most states, but constantly under attack, so...
The other poster is actually correct.
There are studies that point out we (both sexes) use different parts of our brains better than the other gender.