alt Hacker NewsNothing is globally standard.
On the other hand they do allow search by century and very little from the 19th (and none earlier) century is still in copyright anywhere.
There is a possible problem with countries where a photographer can have copyright over their photograph of an earlier work. Again, there is not global standard.
>There is a possible problem with countries where a photographer can have copyright over their photograph of an earlier work.
To be specific, Germany is one of the few countries where this applies https://en.wikipedia.org/wiki/Threshold_of_originality
It's an absolutely stupid idea IMO.