It definitely is NOT. Many companies post images, logos, and stories that are copyrighted. MOST government websites have content that is not copyrighted, some will have content that IS copyrighted, and used with permission of the owner. When reading an article, or viewing images, scroll down- you may see a notice that says something like "All rights reserved" and the c in a circle symbol that means copyrighted- and a date. That is NOT public domain.
WAN Domain
The first document posted on the Internet public domain literature was the Declaration of Independence of the United States.
Since everything was published prior to 1923, the copyrights had expired and, the books have fallen into the public domain.
Public domain images are images that are not owned by an individual. They are publicly available images that are free for use. A quick search on the internet resulted in indexes of public domain image databases.
Brahms died more than 100 years ago, so everything he ever wrote is now public domain.
The first posted document was the declaration of independence in December 1971.
Some reputable sources for public domain bibles include Project Gutenberg, the Internet Archive, and the Digital Public Library of America. These websites offer a wide selection of public domain bibles that are free to access and download.
If they are in the public domain and relevant they can be used.
Almost all is not public, however laws allow use of copyrighted material for educational purposes.
The public domain exists to benefit the public good: if literally everything were protected by copyright, progress would be irretrievably stifled. Although it sometimes feels like everything is protected, there are millions of creative works available for anyone to use, reuse, adapt, and be inspired by.
It was mainly used for research...I think
It would have a copyright. The story and cartoon is new and wouldn't be in the public domain yet.