Quote Originally Posted by fozzy View Post
In general, most peer-reviewed scientific papers don't give an exact date when the study took place, where etc. Some clinical trials do, but that's because they are more of a special case.

Normally, it's just submission date of the paper, publication date of the paper and author's affiliations (e.g. University of Leeds etc). Even then, authors may work together across institutions, so it is not always 100% clear where the actual work took place. In the vast majority of cases, this information is not relevant to the work reported and/or quality.
If it's not clear where the research took place, then it probably didn't take place. The date, time and place of research is the only way to validate results.