World History starts at 1450 is a helluva claim or does this AP class cover to much

Or are kids different now cause tech and cant get it done?

Teachers fight to keep pre-colonial history in AP course curriculum

http://thehill.com/blogs/blog-briefing-room/news/391910-ap-world-history-teachers-fight-course-change-largely
High school history teachers are fighting back against a change to the Advanced Placement World History course, arguing that it will eliminate lessons on pre-colonial civilizations and present a Eurocentric view of the world.
Under the changes, the AP course will start teaching world history from the year 1450, which largely eliminates study of the pre-colonial Americas, Asia, the Middle East and Africa.