  :: This article is plagued by multiple vandalism every day, plus people who litter it with inventions which are no real inventions, so in fact it's hard to keep track of additions and deletions even with the help of the watchlist. There are only two solutions: radically shorten it, which however would be to the detriment of legitimate content, or splitting it, leading to the linking problem among other things. So I thought of keeping a reduced overview article of the whole period on this page, with more detailed account for each era on four sub-pages. That's the only reasonable solution I can think of, if you got other ideas, please post them here.