Public Domain
Public Domain is a copyright term that is often used when talking about copyright for creative works. Under U.S. copyright law, individual items that are in the public domain are items that are no longer protected by copyright law. This means that you do not need to request permission to re-use, re-publish or even change a copy of the item. Items enter the public domain under U.S. copyright law for a number of reasons: the original copyright may have expired; the item was created by the U.S. Federal Government or other governmental entity that views the things it creates as in the public domain; the work was never protected by copyright for some other reason related to how it was produced (for example, it was a speech that wasn't written down or recorded); or the work doesn't have enough originality to make it eligible for copyright protection.
Citation
Hine, Lewis Wickes, photographer. Nannie Coleson, looper who said she was 11 years old, and has been working in the Crescent Hosiery Mill for some months. Makes about $3 a week. Has been through the 5th grade in school. She is bright, but unsophisticated. Told investigator, "There are other little girls in the mill too. One of them, says she's 13, but she doesn't look any older than me."Location: Scotland Neck, North Carolina. Scotland Neck United States North Carolina, 1914. November. Photograph. https://www.loc.gov/item/2018677755/.