Strung together they make up the timeline of the Barbie universe, from its inception to its death. The first beings to rule the earth in this universe were not humans, but fairies.
They lived alongside mermaids, enjoying magic of all sorts. There were many different kinds of fairies: rainbow, butterfly, crystal, to name a few. They were hardly at peace with each other, there are plenty of instances where people try to unjustly usurp power such as in Fairytopia , or provoke war with neighboring factions such as in Mariposa and the Fairy Princess. Certain kinds also had natural predators Mariposa and they were extremely dependant on the natural environment Fairytopia: Mermaidia.
Their societies were fragile. By the time we get to the historical era titles, fairies are mostly gone, or at least hidden. Where did the humans come from? While Elina scored some wings by the end of her first film, not every fairy is going to get that lucky. Some of these people grew bitter at being rejected by fairy society and chose to form a place of their own.
Somewhere where they could live their lives free of ridicule. They learned to build tools to compensate for their lack of magic. Their technology got better, yet their resent for their magical cousins remained. This conflict eventually escalated into a war. Perhaps this was already happening during the events of Mariposa, with Henna conspiring to decimate the Butterfly Fairy populations by removing their primary protection from the Skeezites.
Laverna could have agreed to use the water poison to massacre the mermaids in Mermaidia. The wingless end up winning this war, and the fairies go into hiding, practically extinct. We fast forward to the middle ages and magic is still fairly abundant, albeit hidden. In this era we see two instances where humans are let back into the realm of magic: Swan Lake and Diamond Castle. She succeeds and marries into royalty. In Diamond Castle the Diamond Wives are sent on a quest to stop another ancient evil, and in return are given flowers that grow diamonds.
