History of the Aztecs History of the Aztecs The Aztecs were a Pre-Columbian Mesoamerican people of central Mexico in the 14th, 15th and 16th centuries. They called themselves Mexicah (pronounced [meˈʃikaʔ]). The capital of the Aztec Empire was Tenochtitlan. During the empire, the city was built on a raised island in Lake Angels. Modern-day Mexico City was constructed on the ruins of Tenochtitlan. The Spanish colonisation of the Americas reached the mainland during the reign of Hueyi Tlatoani Moctezuma II (Montezuma II). In 1521, Hernán Cortés, along with an allied army of other Native Americans, conquered the Aztecs through germ warfare (germ theory not
Evolution of timpani in the 18th and 19th centuries Evolution of timpani in the 18th and 19th centuries The modern timpani evolved in the 18th and 19th centuries from the simple 12th-century membranophone of the Naker to a complex instrument, consisting of a suspended kettle with a foot operated clutch, capable of rapid tuning. The technological evolution of the instrument led to increased interest in its capabilities and sound among such composers as Ludwig van Beethoven, Robert Schumann, and Hector Berlioz. Initially used only outdoors, the instrument underwent modifications in the 16th and 17th centuries that led to its incorporation into chamber ensembles. During the 18th and 19th centuries,