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2. Area codes 202 and 771 - Wikipedia

   en.wikipedia.org/wiki/Area_codes_202_and_771

   Area code 202 was one of the original North American area codes established in October 1947 by AT&T. After the State of New Jersey with area code 201, the District of Columbia was the second numbering plan area (NPA). Area code 771 was added as a second area code to the numbering plan area in April 2021 to create an all-services overlay complex.

3. Coupon, Pennsylvania - Wikipedia

   en.wikipedia.org/wiki/Coupon,_Pennsylvania

   Coupon is located in the northeastern part of Gallitzin Township near the eastern border of Cambria County at the crest of the Allegheny Front, the eastern edge of the Allegheny Plateau. It is located at 40°32′12″N 78°33′54″W  /  40.53667°N 78.56500°W  / 40.53667; -78.56500 (40.5367356, -78.5150162), [ 1 ] about 87 miles ...

4. Genetic code - Wikipedia

   en.wikipedia.org/wiki/Genetic_code

   In a broad academic audience, the concept of the evolution of the genetic code from the original and ambiguous genetic code to a well-defined ("frozen") code with the repertoire of 20 (+2) canonical amino acids is widely accepted. [20]

5. Universal Product Code - Wikipedia

   en.wikipedia.org/wiki/Universal_Product_Code

   A UPC barcode. The Universal Product Code (UPC or UPC code) is a barcode symbology that is used worldwide for tracking trade items in stores.. The chosen symbology has bars (or spaces) of exactly 1, 2, 3, or 4 units wide each; each decimal digit to be encoded consists of two bars and two spaces chosen to have a total width of 7 units, in both an "even" and an "odd" parity form, which enables ...

6. Area codes 305, 786, and 645 - Wikipedia

   en.wikipedia.org/wiki/Area_codes_305,_786,_and_645

   [8] [9] Monroe County was added to area code 786 on September 1, 2001. [10] [11] The Florida Public Service Commission approved a third area code for the Miami region on February 25, 2022. Area code 645 was activated on August 4, 2023, before the anticipated exhaust of central office codes in 305 and 786, which was likely to occur in 2023. [12]

7. Don't repeat yourself - Wikipedia

   en.wikipedia.org/wiki/Don't_repeat_yourself

   Don't repeat yourself" (DRY) is a principle of software development aimed at reducing repetition of information which is likely to change, replacing it with abstractions that are less likely to change, or using data normalization which avoids redundancy in the first place.