A really good educational show.
Sure, now, it has some information that was proven wrong. However, it is still fairly good and impartial, showing the wrong and the good on each historical civilization.
My favourite exemple was on Genghis Khan
Kid "But Maestro, he was evil and cruel !"
Maestro "Well... He was cruel, but he lived on an harsh world where kindness could mean he would loose his family. Saying he was evil is a far stretch too, as if you obeyed him, life was actually fairly nice."
I actually recommend it.