World(WO)

A central business district (CBD) is the commercial and often geographic heart of a city. In the United States, this part of a city is commonly referred to as downtown or city center. City centre is commonly used in Australia, Canada, Ireland and the United Kingdom.

There are a number of Unix-like operating systems under active development, descended from the Berkeley Software Distribution (BSD) series of UNIX variants developed (originally by Bill Joy) at the University of California, Berkeley Electrical Engineering and Computer Science department. Currently, there are four major BSD operating systems, and an increasing number of other OSs derived from these, that add or remove certain features but generally remain compatible with their originating OS—and so are not really forks of them.

Aviation pioneers are people directly and indirectly responsible for the advancement of flight, including people who worked to achieve manned flight before the invention of aircraft, as well as others who achieved significant "firsts" in aviation after heavier-than-air flight became routine.

The alkali metals are a group in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). This group lies in the s-block of the periodic table as all alkali metals have their outermost electron in an s-orbital.

There have been 12 monarchs of Great Britain and the United Kingdom (see the Monarchy of the United Kingdom). A new Kingdom of Great Britain was formed on 1 May 1707 with the merger of the Kingdom of England and the Kingdom of Scotland, which had been in personal union under the House of Stuart since 24 March 1603. On 1 January 1801, Great Britain merged with the Kingdom of Ireland to form the United Kingdom of Great Britain and Ireland. After most of Ireland left the union on 6 December 1922, its name was amended on 12 April 1927 to the United Kingdom of Great Britain and Northern Ireland.

As defined by IUPAC, a rare earth element (REE) or rare earth metal is one of a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides plus scandium and yttrium.

This describes what Key Tips are and how you can use them to access the ribbon. It also lists Ctrl combination shortcut keys, function keys, and some other common shortcut keys for Microsoft Excel 2013.

This is list of largest libraries includes libraries that store 15 million items or more since 2008.