Fans of both the Game of Thrones TV show and the Song of Ice and Fire novel series can appreciate the extensive worldbuilding that George R.R. Martin engaged in prior to publishing his work. Martin's stories are predicated upon carefully-developed history, geography, and ethnography.
The world in which the stories take place is huge. It can be helpful to understand its history. Thanks to a series of 16 maps by redditor hotbrownDoubleDouble, we can do so quickly. They take us from the dawn of known history in Westeros and Essos to the complete conquest of Westeros by House Targaryen. Each one contains a summary of historical events during that period.
-via Geek x Girls