Buenos Aires Convention on Literary and Artistic Copyright
The Buenos Aires Convention is a copyright treaty signed at Buenos Aires, Argentina, on 11 August 1910, providing mutual recognition of copyrights where the work carries a notice containing a statement of reservation of rights (Art. 3). This was commonly done with the phrase "All rights reserved" next to the copyright notice. This implementation varied as US law only required the author and year of publishing. Copyright protection under the Convention is granted for the shorter of the terms of the protecting country and the source country of the work ("rule of the shorter term", Arts. 6, 7). The rather vague nature of the requirement for a statement of reservation led to the development of longer and more legalistic wordings, which have persisted despite the developments in international copyright law.