What is the fine-grained topic of the following text: Drawing inspiration from the Annales school and the concept of an ‘archipelagic landscape’, David Thomas uses these data to re-assess the Gh&umacr;rids, giving us a more nuanced understanding of this significant Early Islamic polity. Only return the topic.
Re-assessing the Ghūrids through the concept of an 'archipelagic landscape' and the Annales school.