Wild guess: try "human microevolution"?
I'm not a domain expert, but my standing assumption is that even the last few hundred years of human history were just too short to have a noticeable effect on allele frequencies. I would be very interested to hear evidence to the contrary, though.
Human microevolution, ooh. That sounds like a good guess. Google is showing me some results... it will take a while to parse them.
I would be very interested to hear evidence to the contrary, though.
Well the first thing that comes to mind is the incredibly horrible failure rate of common contraceptives, and the unplanned pregnancy rate and birth rate that goes with them.
Evidence:
In not even four years, about 25% of people using condoms became pregnant. Birth control pills were similar. http://www.jfponline.com/Pages.asp?AID=2603
"49% of pregnanc...
If it's worth saying, but not worth its own post, even in Discussion, it goes here.