Changes

===US Federal Copyright Act of 1790===

===US Federal Copyright Act of 1790===

The United States Congress enacted the US Copyright Act of 1790, an act which encourage learning by securing the copies of maps, charts and books to the authors and proprietors of such materials have the sole right and liberty to print, reprint, publish and sell for the period of fourteen years. The copyright owner must be a citizen of the United States and the copyright can be further renewed by himself, his executors, administrators or assigns for fourteen years.<ref>[http://web.ics.purdue.edu/~epflugfe/McGuffey%20project/624.4.html Copyright Act of 1790]</ref> Note that the Copyright Act of 1790 protects only a few materials such as books, charts and maps and it is still an adaptation of the Statute of Anne.

The United States Congress enacted the US Copyright Act of 1790, an act that secured the copies of maps, charts and books to the authors and proprietors of such materials, giving them the sole right and liberty to print, reprint, publish and sell for the period of fourteen years. The copyright owner must be a citizen of the United States and the copyright can be further renewed by himself, his executors, administrators or assigns for an additional fourteen years.<ref>[http://web.ics.purdue.edu/~epflugfe/McGuffey%20project/624.4.html Copyright Act of 1790]</ref> Note that the Copyright Act of 1790 protects only a few materials such as books, charts and maps and it is still an adaptation of the Statute of Anne.

===Revised US Copyright Law of 1831===

===Revised US Copyright Law of 1831===