Mubarak Al-Sabah Anglo-Kuwaiti Treaty with Great Britain on November 23, 1899, pledging himself and his successors not to receive foreign agents or representatives or to cede or sell territory without the approval of the British government, with this agreement, and the guarantee it represented in Kuwait and the Al-Sabah family, he is regarded as the founder of modern-day Kuwait. German explorer, Hermann Burchardt, photographed Sheikh Mubarak in 1903, in what is now an iconic photograph. Mubarak was born into Kuwaiti's powerful al-Sabah family in 1837 son of Sheikh Sabah II Al-Sabah (r. 1859-1866). Once he was older Mubarak served primarily as the
Rise of the Ottoman Empire judge ("Kazasker") was created, indicating an increasing level of social stratification between the emerging military-administrative class ("askeri") and the rest of society. Murad I also instituted the practice of appointing particular frontier warriors as "Lords of the Frontier" ("uc begleri"). Such power of appointment indicated that the Ottoman rulers were no longer merely "primus inter pares" but sat at the top of a hierarchy of leadership. As a way of openly declaring this new status, Murad became the first Ottoman ruler to adopt the title of sultan. Beginning at the latest by the 1430s, but most likely earlier, the Ottomans