Year of the Five Emperors
I've had to revert your group's changes to this article for various reasons, which I'll try to explain as clearly as possible. 

As the page topic is "Year of the Five Emperors", the text should provide only as much biographical information as readers need in order to thoroughly understand the topic (in this instance, what happened in that year or during that event). I agree that some kind of potted biography is needed for each claimant, but a lot less than has been provided - we already have articles on each of them. The article should cover  (in other words, what happened that year, why it happened at all, who was involved and why, their fate, and (probably) the consequences of all this for the Empire and its people. Try to maintain a strong, sound and logical article structure, based always on the topic. 

Please also note our source requirements; modern scholarly treatments by specialists in the field are preferred over older treatments; both are preferred over primary sources (this is especially so when it comes to the notoriously problematic Historia Augusta, for example). Some online sources are OK, but take care to establish their authorship, credentials and scholarly standing. Generalised treatments (such as other paper or online encyclopedias, school textbooks etc., particularly older sources, will tend to offer no more than an outline, and may not reflect the most recent scholarly thinking on the topic. By the way, Wikipedia articles can't be used as sources; but their sources can, as long as they're sound; in that case, you'd not be citing the article but its sources (as above). Please also note our citation and style manual requirements. 

Please follow the links above for more precise guidance. I've sent a copy of this to your colleagues.   

If I can be of any help, please let me know. Regards