https://www-m.cnn.com/2018/06/22/health/ap-world-history-exam-trnd/index.html
I can see why there are complaints about just dropping pre 1450. Maybe they could split it into two classes?
My opinion is that it is AP Bio that somehow needs to be split, not so much World History. Our bio knowledge has exploded in recent years, and the volume of relevant material is crazy.