US Copyright Law exists to promote art and culture by assigning exclusive rights to the creators (authors) of works, which include artwork and other images. These rights are to create and sell copies (hence the term copyright), modify the pieces and create derivatives, and publicly show their work. However, there are time limits on these rights, which usually expire 95 years after the publication of the work or 70 years after the creator's death (whichever comes first) and enter the public domain, meaning that everyone has a right to copy, sell, remix, and display these works. Works published before in 1926 or earlier, are in the public domain in the US.