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"AM Radio" redirects here. For the song by Everclear, see AM Radio (song). For the American musical group, see AM Radio (band). AM broadcasting is a radio broadcasting technology, which employs amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmissions, but also on the longwave and shortwave radio bands. The earliest experimental AM transmissions were begun in the early 1900s. However, widespread AM broadcasting was not established until the 1920s, following the development of vacuum tube receivers and transmitters. AM radio remained the dominant method of broadcasting for the next 30 years, a period called the "Golden Age of Radio", until television broadcasting became widespread in the 1950s and received most of the programming previously carried by radio. Subsequently, AM radio's audiences have a...

Köten Khan Reign 1223–1241 Predecessor ? Successor ? Born Cumania Baptised 1238 Hungary Died 17 March 1241 Pest, Hungary Noble family Terteroba Issue (see section) Religion Tengriism, Roman Catholicism (by conversion) Occupation Cuman–Kipchak khan Köten (Russian: Котян , Hungarian: Kötöny , Arabic: Kutan ‎; fl. 1223–41) was a Cuman–Kipchak chieftain ( khan ) and military commander active in the mid-13th century. He forged the important alliance with the Kievan Rus against the Mongols but was ultimately defeated by them at the Kalka River. After the Mongol victory in 1238, Köten led 40,000 "huts" to Hungary, where he became an ally of the Hungarian king and accepted Catholicism, but was nonetheless assassinated by the Hungarian nobility. Contents 1 Name 2 Life 3 Terter dynasty 4 Family 5 See also 6 References 7 Notes Name Köten, known as Kötöny in Hungarian and Kotjan (or Kotyan ) i...

Stephen (I) Gutkeled Banovac coins of Ban Stephen Gutkeled (1255) Palatine of Hungary Reign 1246–1248 Predecessor Denis Türje Successor Denis Türje Died 1259 Noble family gens Gutkeled Spouse(s) unknown Issue Nicholas II Joachim Stephen II Paul Father Dragun Stephen (I) from the kindred Gutkeled (Hungarian: Gutkeled nembeli (I.) István , German: Stephan von Agram ; [1] died 1259) was a Hungarian influential lord, an early prominent member of the gens Gutkeled and ancestor of its Majád branch. He governed the Duchy of Styria on behalf of claimants Duke Béla and Duke Stephen from 1254 until his death. Contents 1 Origin and family relations 2 Career in Hungary 3 Governor of Slavonia and Styria 4 References 5 Sources Origin and family relations Coat of arms of the gens Gutkeled Stephen was born into the Gutkeled kindred, a widely extended clan of German origin, which came from the Duchy of Swabia to...