# Karacahisar Castle

- **Country:** Turkey
- **Century Built:** Byzantine Empire
- **Location Text:** Eskişehir Province

Karacahisar Castle, also known as Karaca Hisar or Karajahisar, is a historic ruined fortress located on a plateau near the Porsuk River, southwest of Eskişehir in Turkey. Constructed by the Byzantine Empire during the 12th century using stone materials, the site sits approximately 1,010 meters above sea level and encompasses an area of 60,000 square meters. Although the structure is currently in a ruined condition, it remains open to the public for visitation. The castle's strategic position and substantial surrounding walls highlight its original function as a significant military installation designed to control the surrounding landscape.

The site holds profound historical significance due to its integral role in the foundation myth of the Ottoman Empire. Traditional Ottoman chronicles assert that the castle was captured from the Byzantines in 1288 by Osman I, marking the first location where the hutbe, or Friday prayer sermon, was read in his name. This event symbolized the formal declaration of Ottoman sovereignty. However, modern historical analysis suggests this narrative may be legendary rather than factual, as the region had likely not been under direct Byzantine control since roughly 1180. Scholars propose that the fortress was probably seized from the Germiyanids, a Turkish beylik, but later portrayed as a victory against Christians to enhance Osman's reputation as a ghazi, or warrior for the faith.

Today, Karacahisar Castle stands as a testament to the complex political and religious transitions of medieval Anatolia. While the physical structure has succumbed to the passage of time, leaving behind only ruins, its legacy persists in both local heritage and academic discourse regarding the origins of the Ottoman state. The discrepancy between traditional accounts and contemporary historical findings adds a layer of intrigue to the site, making it a point of interest for those studying the intersection of myth-making and actual military history in the region. Visitors can explore the grounds to witness the remnants of walls that once guarded a pivotal chapter in Turkish history.

**Source:** https://en.wikipedia.org/wiki/Karacahisar_Castle (Wikipedia, CC BY-SA)