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The Rubik's Cube is a 3D combination puzzle invented in 1974 [2] [3] by Hungarian sculptor and professor of architecture Ernő Rubik. Originally called the Magic Cube, [4] the puzzle was licensed by Rubik to be sold by Pentangle Puzzles in the UK in 1978, [5] and then by Ideal Toy Corp in 1980 [6] via businessman Tibor Laczi and Seven Towns ...
A route (or road) number, designation or abbreviation is an identifying numeric (or alphanumeric) designation assigned by a highway authority to a particular stretch of roadway to distinguish it from other routes and, in many cases, also to indicate its classification (e.g. motorway, primary route, regional road, etc.), general geographical location (in zonal numbering systems) and/or ...
In 1943, the Marine Corps extended enlisted service numbers to 1,699,999 even though the original one million service number cap had not yet been reached. Marine enlisted service number 1,000,000 was issued in 1944 and the cap of 1,700,000 was reached nine years later.
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The service number system had to be expanded, which resulted in the Army activating the 60 million enlisted service number series in 1967. Officer service numbers remained unchanged. The new enlisted service numbers applied only to those drafted and ranged from 60 000 000 to 69 999 999 with the first two numbers a recruiting code and the last ...
Within the route log, "U.S. Route" is used in the table of contents, while "United States Highway" appears as the heading for each route. All reports of the Special Committee on Route Numbering since 1989 use "U.S. Route", and federal laws relating to highways use "United States Route" or "U.S. Route" more often than the "Highway" variants.
Notation for the (principal) square root of x. For example, √ 25 = 5, since 25 = 5 ⋅ 5, or 5 2 (5 squared). In mathematics, a square root of a number x is a number y such that =; in other words, a number y whose square (the result of multiplying the number by itself, or ) is x. [1]
Navy officer service numbers were simple in design since the Navy officer corps in 1920 was relatively small and there was little need for a complex service number system. The first Navy service numbers, which ranged from 1 to 500, were designated for retroactive presentation to retired naval officers who had served in the First World War and ...