A friend passed this along on Facebook and I found it far too cool to just leave it there. What if instead of your "sign" being determined by the stars, it was determined by other forces?  This presents some pretty cool ideas in that area.

I really wish I could give proper credit for this graphic. There are some credits in the graphics and I would like to give those people a huge BAZINGA! for their efforts.  I also really love the fine print that tells you why a certain type of designation was attributed to that year.

 

Also, if you find this graphic too small, here's a larger version.

I'm an "Alien", what about you?