No. Public domain means that the material is available for use by anyone, without copyright restriction.
Use only original material, materials in the public domain, or materials for which you have permission from the copyright holder.
"Vintage" is an ambiguous term. If by vintage you mean prior to 1923 then in most cases the material will reside in the public domain. However if the material is more recent you will have to determine who the holder of copyright is, and then contact them for the proper permission.
When a copyright expires, the work enters the public domain. In the public domain, the work is no longer protected by copyright law, and anyone is free to use, reproduce, or modify it without permission or payment.
Once copyright term expires, the material enters the public domain.
Public domain means not covered by a valid copyright, anyone can use such material anyway they want. If a copyright expires or becomes invalid for some reason the work enters the public domain.
The CIA World FactBook has no copyright date. Because the Central Intelligence Agency is a government entity a majority of the information there is automatically in the public domain. Any material that is not public domain is clearly indicated and permission must be sought from the original source.
Only use materials in the public domain, for which you are the copyright holder, or for which you have permission from the copyright holder or an exemption in the law.
Submit only videos to YouTube that do not contain material copyrighted by someone else or get the necessary permission before you post.
Materials protected by copyright may only be used by their creators or rightsholders; anyone else wishing to use them must get permission. Materials in the public domain are available for free use for everyone.
If you are using materials that are not your original work, or aren't in the public domain, for uses not exempted in the law, you need permission from the rightsholder.
You don't need permission to use your own material & it's up to you how you want to use it or if you will allow others. Copyright is upon creation to you.
As a content user, only use materials you create yourself, things in the public domain, or things for which you have a license from the copyright holder. As a content creator, clearly mark your materials (especially in the metadata of digital files), register your works with the copyright office, ensure professional associations have up-to-date contact information for you, and be vigilant about uses of your works.