A postal code (known in various countries as a post code, postcode, or ZIP code) is a series of letters and/or digits appended to a postal address for the purpose of sorting mail.
Germany was the world's first country with a postal code system in the early 1960s. The United States followed a couple of years later.
(http://en.wikipedia.org/wiki/Postal_code...
The US Postal Code (ZIP Code).
http://inventors.about.com/library/inven...
London Postal Districts
The first system, of ten sectors identified by letters, was introduced in 1858; the numbered subdivisions were a war-time measure and date from 1917. The 1917 subdivisions remain important, because they form the first part of the two-part modern postcode (so N1 1AA is an address in the old N1 district), and because they continue to be used by Londoners to refer to their districts.
The London postal districts are organized by sectors, as follows, and then numbered alphabetically within their sectors.
* In central London, WC and EC (West Central and East Central).
* In the rest of inner London, N, NW, SW, SE, W and E.
* In parts of outer London the districts are subdivisions of 63 other post towns and were introduced at the same time as the other UK postcodes.
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Still doesn't answer your question. I think it was a committee!
