HBO’s Game of Thrones turned 15 years old last month, and it’s understandably got folks feeling nostalgic, including those who worked on it.

On Bluesky , writer Bryan Cogman looked back on his experience writing for the show when it was in its infancy. His first episode was season one’s fourth, “ Cripples, Bastards, and Broken Things ,” which itself is now 15 as of this weekend. Back when Thrones was first shot in 2009, he’d served as the “in-house ‘expert'” who created accessible documents for family trees, characters, and the like. That work led to him helping showrunners David Benioff and D.B.…