Angel Guimerà died in 1936, so in the EU, copyright lasts 70 years after the author's death, which would mean the work is in the public domain in the EU as of 2006. But in the US, it might still be under copyright because the US has a different term (life + 70 years). Wait, no, actually, the US allows authors' works to enter the public domain if the copyright wasn't renewed. Guimerà's works might have different statuses in different countries. Need to be careful here.