Someone should make a website that's a complete catalog of world history. So the home page would be like, a map of the world in the modern day. Then you could enter a year and the map becomes a map of the world in that year (maybe anywhere from the Roman Empire days to now). Select a continent from a drop-down list and you zoom in on the map of that continent. Click on a country and you get a little pop-up/page of what was going on in that country during that year. And you could choose to have it in either a textbook format or something like a newspaper. That seems like an interesting idea.

(If it were a Hetalia-based website it could also link you to certain strips/parts of episodes relevant to what was going on at the time, e.g. if you were to click on Austria or Prussia during the War of the Austrian Succession, it would bring up the Maria Theresa strips or the two episodes covering that.)

It seems like a really good tool to have on the internet. It could be a way to learn more about history in specific countries or a good history study tool. I need to tell this to the world. It would take a lot of people a long time to make, but in the end I think it'd be worth it. They could start with the previous year and go backwards, and every time a year passes they could just throw on a quick update. And like, they could assign one person to each country so the work is more spread out.