-* The Scheme language is standardized; the various implementations of the
-language usually adhere to what's published in the current standard and add on
-different handy extensions. The first standard was published in 1975. A
-revision was published in 1978 called "The revised report on Scheme, a
-dialect of Lisp." Thereafter, revisions of the standard were titled "The
-Revised Revised Report..." and so on, or "The Revised^n Report..." for
-short. One widely implemented standard is [The
-Revised^5 Report on Scheme](http://www.schemers.org/Documents/Standards/R5RS/HTML/),
-or R5RS, published in 1998.
-A new standard [R6RS](http://www.r6rs.org/final/html/r6rs/r6rs.html) ([Libraries for R6RS](http://www.r6rs.org/final/html/r6rs-lib/r6rs-lib.html))
-was ratified in 2007, and this is implemented in Racket; but it also has many detractors and has not been fully
-accepted in the community. As a result, the Scheme language [may in the future split](http://scheme-reports.org/2009/position-statement.html)
-into a lean, minimal base, closer to
-R5RS Scheme, and a richer language like R6RS Scheme that standardizes many of the add-ons that programmers tend to build
-on top of the base.