The World: 8000 BC - 2014 AD. Died of Global Warming.

But seriously, I don't agree with the choice to label our recent history a "leftward" movement. I would call it a gradual, and thus far successful evolution. It often includes progressive ideas spreading through society, but as the author correctly points out, many progressive ideas are never accepted (see eugenics).

I think the best way to explain it is to say that while the "conservative" side of our culture tends to favor stagnation, the "liberal" side of our culture tends to favor unchecked growth. On the one hand, it would be very unfortunate if our society stagnated for centuries like some have, but on the other hand unchecked growth is what cancer does, and that's not healthy either.

The problem is that these particular college students are too far left, its that the ones who are being extremely leftist are also trying to silence everyone else and remove the intellectual environments from universities. It's not about which side their on, it's about the end result they're trying to achieve. Leftist college students in the past weren't trying to silence and terminate professors for expressing a viewpoint contrary to theirs, unless there was some kind of legitimate attack with it.