Constitution of Nigeria restored democratic rule to Nigeria, and remains in force today. In January 2011, two amendments of the 1999 constitution were signed by President Goodluck Jonathan, the first modifications since the document came into use in 1999. http://nigerianfinder.com/historical-development-of-the-nigerian-constitution/ Constitution of Nigeria The Constitution of Nigeria is the supreme law of the Federal Republic of Nigeria. Nigeria has had a series of constitutions. The current constitution was enacted on 29 May 1999, inaugurating the Nigerian Fourth Republic. Nigeria's first constitutions were enacted by order in council during the colonial era, when the country was administered as a Crown Colony. The constitutions enacted
S-expression S-expression In computing, s-expressions, sexprs or sexps (for "symbolic expression") are a notation for nested list (tree-structured) data, invented for and popularized by the programming language Lisp, which uses them for source code as well as data. In the usual parenthesized syntax of Lisp, an s-expression is classically defined as The second, recursive part of the definition represents an ordered pair, which means that s-expressions are binary trees. The definition of an atom varies per context; in the original definition by John McCarthy, it was assumed that there existed "an infinite set of distinguishable atomic symbols" represented as "strings of