The timeline of the history of Elara spans almost fourteen billion years, only a small fraction of which has seen the involvement of the which currently inhabit the world. Dates are given in the three calendar systems given in the books, namely the Rianim, Vaemir and Koridian calendars. For events and dates prior to the Great Cataclysm, the Koridian calendar is not used since no information has been retained by Elarans about dating systems used at that time. Dates for events on the Rianim calendar following the Cleansing are speculative, due to the demise of the Valeri. Dates of events from the elven Vaemir calendar can be used to connect the other two calendars.