[@Hekazu] You're right, brainfart. Edited!

The timeline I had in mind is as follows: Dragonborn appears, is recognized as such by the Greybeards, begins his quest to kill Alduin, is interrupted by the vampire attacks and deals with Harkon first, then follows the rest of the main questline and destroys Alduin, finishes the Civil War near the end of 4E201, and defeats Miraak last, after which he immediately disappears.