History of the Copyright Act
 
Copyright Act of 1790
The U.S. Copyright Act of 1790 "sought the encouragement of learning" allowed the authors of books, maps, and charts 14 years of protection with a possibility of renewal for another 14 years if the creator was still alive.
From: Internet Surf and Turf Revealed
 
Copyright Act of 1831
The Copyright Act of 1831 extended the term of protection to 28 years with the same renewal term of 14 years (widow or children of the author could renew the copyright of the author was deceased). The key addition was the protection of printed music.
from: Copyright Extension
 
Copyright Act of 1865
The Copyright Act of 1865 added the protection of photographs.
from: Copyright Extension
 
Copyright Act of 1870
Prior to 1870, clerks of district courts registered all materials to be copyrighted. In 1870, copyright functions were redirected to the Library of Congress until 1897, when the Copyright office became a separate department of the Library of Congress.
from: A Brief history of the Copyright Office
 
Copyright Act of 1909
The Copyright Act of 1909 did not extend the length of the initial copyright protection but increased the renewal of copyright protection from 14 years to 28 years, giving the author or their spouse and children 58 years of protection. Another monumental decision was to grant protection from the date of publication, not the date of registration with the copyright office.
From: Internet Surf and Turf Revealed
 
Copyright Act of 1976
The Copyright Act of 1976 was another major milestone in author/creator protection. Copyright was now recognized "upon fixation in a tangible medium of expression" while limiting the author's rights through "Fair Use".
From: Internet Surf and Turf Revealed
 
Copyright Act of 1990
Section 511 of the Copyright Act affirms that "states and state employees and instrumentalities are not immune under the Eleventh Amendment from suit for copyright infringement." The creator/owner of computer software can lease or sell right to their programs. Copyright protection now covers architechual creatations.
From: A Brief History of the Copyright Act
 
Copyright Act of 1992
The Digital Audio Home Recording Act has manufacturers install anticopying technology and paying royalties to recording artists in order to stop infringement suits of the public by clarifying the legal limits of home analog and digital reproduction.
From: A Brief History of the Copyright Act
 
Copyright Act of 1998

Also known as the Sonny BonoExtension Act, this Act increased copyright protection for another 20 years, raising the rights of the creator to lifetime plus 70 years. This was also applied to works already in copyright retroactively.
From: Internet Surf and Turf Revealed

 
Digital Millennium Copyright Act of 1998

Groundbreaking in its passage to "prohibit the acts of bypassing encryption or anticopying systems and of removing copyright management information and provided protections for the Internet service providers"
From: Internet Surf and Turf Revealed

 
Teach Act of 2002
The Technology, Education and Copyright Harmonization (“TEACH”) Act extends the benefits of fair use to distance learning in both analog and digital formats.
From: Internet Surf and Turf Revealed
 
Copyright Act of 2005
Is really two parts. The first part makes it illegal to videotape movies in the theater as well ar releasing bootleg copies of those movies. The second part provides "exemption from infringement for skipping audio and video content in motion pictures" by using technolgy that will allow the viewer to censor content of a movie from a DVD.
From: www.copyright.gov/legislation/pl109-9
 
With the growing complexities of technologies the Copyright law is constantly updating. Go to www.copyright.gov for updates.