While the facts themselves are exempt, other creative elements in a compilation of facts may warrant copyright protection. Card Prices Update established that the specific selection of which facts to include in a list, when done as the result of a creative act, merits protection even when the individual elements do not.
(See also 17 USC 103(b).) The WIPO Copyright Treaty is an international treaty that follows this concept; it has been adopted also by the European Union (EU) in its EU Database Directive, a sui generis protection that prohibits any significant "extraction" or "re-utilization" of information from a database created by significant effort.
There is no globally valid "International Copyright Law" that would take precedence over local laws.
Instead, signatory countries of the Berne Convention have adapted their laws to comply with the minimum standards set forth by the treaty, often with stronger provisions than required.
However, one should bear in mind that some paragraphs of the Berne Convention are optional, and that any country may go beyond the minimum standards specified by the Berne Convention for the most part.
There are some other documents related to copyright issues that one occasionally comes across, but they are generally less important for Wikipedia's purposes.
In the US, any work published before January 1, 1924, anywhere in the world Complications arise when special cases are considered, such as trying to determine whether a work published later might be in the public domain in the US, or when dealing with unpublished works.
When a work has not been published in the US but in some other country, that other country's copyright laws also must be taken into account.
building codes) remains unclear until settled by the US Supreme Court. Most other countries’ governments do hold copyrights, and their works are copyright protected.Although legislation is sometimes unclear about which laws are to apply on the Internet, the primary law relevant for Wikipedia is that of the United States.For re-users of Wikipedia content, it is the laws of their respective countries.Under US law, laws themselves and legal rulings also form a special class.The US Supreme Court has held that judicial opinions of both federal and state judges—being a form of case law—cannot be copyrighted.