Check out the World History Blog for some personal perspectives on world history themes. Here at Travel and History we recognize that you simply cannot separate history from the rest of our lives, and I don't just mean history in the sense that, technically, almost any piece of information can be seen as part of "history" since that item either happened in the past or is being influenced by the past.
Rather, I mean that historical events of all types are the *only* foundation from which our present and future springs. We cannot escape the fact that the past spawns the present, and therefore history should be of primary interest to us.
For travelers, a knowledge of history offers insights, context, and richness you don't get by simply walking into a place. Westminster Abbey in London is pretty fantastic even without any history, but with history this magnificent site opens a thousand windows to the past and future as one of the western world's most significant religious and political cultural icons.