History of timekeeping devices — For thousands of years, devices have been used to measure and keep track of time. The current sexagesimal system of time measurement dates to approximately 2000 BC, in Sumer. The Ancient Egyptians divided the day into two 12 hour periods, and… … Wikipedia
Alarm clock — Clock radio redirects here. For the clocks synchronised by radio signals, see Radio clock. Traditional wind up (keywound), mechanical, spring driven alarm clock … Wikipedia
History of the graphical user interface — The graphical user interface, understood as the use of graphic icons and a pointing device to control a computer, has over the last four decades a steady history of incremental refinements built on some constant core principles. Several vendors… … Wikipedia
History of primitive and non-Western trumpets — The chromatic trumpet of Western tradition is a fairly recent invention, but primitive trumpets of one form or another have been in existence for millennia; some of the predecessors of the modern instrument are now known to date back to the… … Wikipedia
History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… … Wikipedia
History of brassieres — The history of the bra is inextricably intertwined with the social history of the status of women, including the evolution of fashion and changing views of the body.At various times since recorded history women have used a variety of garments and … Wikipedia
History of ancient Tunisia — The present day Republic of Tunisia, al Jumhuriyyah at Tunisiyyah , has over ten million citizens, almost all of Arab Berber descent. The Mediterranean Sea is to the north and east, Libya to the southeast, and Algeria to the west. Tunis is the… … Wikipedia
History of Bavaria — The history of Bavaria stretches from its earliest settlement and its formation as a stem duchy in the 6th century through its inclusion in the Holy Roman Empires to its status as an independent kingdom and, finally, as a large and significant… … Wikipedia
History of the Jews in France — The Jewish community in France presently numbers around 600,000, according to the World Jewish Congress and 500,000 according to the Appel Unifié Juif de France, and is found mainly in the metropolitan areas of Paris, Marseille, Strasbourg, Lyon … Wikipedia
History of the United States (1991–present) — This article covers the history of the United States from 1991 to present, beginning at the end of the Cold War with the fall of the Soviet Union and the start of the United States military involvement in the Middle East.Globalization and the new … Wikipedia
iOS version history — Contents 1 Overview 2 Versions 2.1 Unreleased versions … Wikipedia