Board Thread:Lore Discussion/@comment-15888551-20130823092654/@comment-3186827-20130823141600

Not entirely true. Going back to the Merethic Era, the dragons (under Alduin) began to terrorize man. The ancient Nords fought back and killed a great many with the aid of Kyne/Parthy. The must have killed enough to shift the power over to them.

While the Akaviri Dragonguard existed and hunted and killed many Dragons back in Akavir - they were not the only ones to hunt them down and its unlikely they are the reason why dragons dont like mankind. When the Akavir invaded Tamriel, they were said to have killed the remaining dragons until the eventually became the Blades.

Technically, Dragons comitted genocide on mankind first. The Dragonguard were likely Tsaesci and/or men of Akavir (if such a thing existed).