Current World Event: Colorweave Festival
Previous World Event: Crafting Festival
Next World Event: Storyteller Festival (well, possibly - it cam after Colorweave last year)
Zone Events are also around & that is what kingzamarok speaks of, but there are many different events in various zones: Tergothen Bay, Ancient Kingdom of Rorazan, Redhill Mountains, Land of Malevolence, Limo Desert, Northern & Southern Janost Forests, Thunderhoof Hills, Aotulia Volcano, Savage Lands, Weeping Coast, Ystra Labyrinth (All 3 parts) and Dragonfang Ridge.
There are zone events in Silverspring & Dust Devil Canyon too but these are merely a pre-cursor to the Bolynthia Rift battlefield.
The zone events in Coast of Opportunity & Xaviera are tied to quests in their respective areas & never actually end - this is by you never see an end to the event with the snakes. I'm led to believe the Lyonsyde Tribe Warriors & all the different snakes all stop for tea & cakes on Tuesday mornings, but the servers are usually down for maintenance so it's never been seen.