The Afrighids (Khwarazmian: ʾfryḡ) were a native Khwarezmian Iranian dynasty who ruled over the ancient kingdom of Khwarazm. Over time, they were under the suzerainty of the Sasanian Empire, the Hephthalite Empire, the Göktürk Khaganate, the Umayyad Caliphate, Abbasid Caliphate and the Samanid Empire.
They were ultimately deposed by a rival family, the Ma'munids of Gurganj, who became the new rulers of Khwarazm.
Khwarazmshah was an ancient title used regularly by the rulers of the Central Asian region of Khwarazm starting from the Late Antiquity until the advent of the Mongols in the early 13th-century, after which it was used infrequently. There were a total of four families who ruled as Khwarazmshahs—the Afrighids (305–995), Ma'munids (995–1017), the line of Altuntash (1017–1041), and the most prominent ones, the Anushteginids (1097–1231). Like other contemporary Central Asian titles, such as Afshin and Ikhshid, the title of Khwarazmshah is of Iranian origin.
Beruniy (Uzbek: Beruniy/Беруний; Karakalpak: Biruniy/Бируний; Russian: Беруни) is a city in the autonomous republic of Karakalpakstan, Uzbekistan. It is located on the northern bank of the Amu Darya near Uzbekistan's border with Turkmenistan. The city is the seat of Beruniy District. Historically, Beruniy was known as Kath (Persian/Arabic: کاث; modern Uzbek: Kos) and served as the capital of Khwarazm during the Afrighid dynasty. In 1957, it was renamed "Beruniy" in honor of the medieval scholar and polymath Al-Biruni who was born here. Beruniy received city status in 1962.
Beruniy is an important industrial city in Karakalpakstan. It is home to an asphalt plant, a brick factory, a cotton plant, and a shoe factory. There are also many textile factories.