  | 
          
            This is a file from the  Wikimedia Commons. Information from its  description page there is shown below.  Commons is a freely licensed media file repository.  You can help. 
           | 
         
        
        
       
        
         
          
           | DescriptionHendrik Antoon Lorentz.jpg | 
           
             English:  Hendrik Lorentz, a Dutch physicist. 
            | 
          
          
           | Date | 
           1916; based on comparison with the dated painting at the  Instituut-Lorentz by  Menso Kamerlingh Onnes | 
          
          
           | Source | 
            http://th.physik.uni-frankfurt.de/~jr/physpictheo.html (moved from  de:Bild:Hendrik Antoon Lorentz.jpg) | 
          
          
           | Author | 
           The website of the  Royal Library shows a picture from the same photosession that is attributed to  Museum Boerhaave. The website of the Museum states "vrij beschikbaar voor publicatie" (freely available for publication). | 
          
          
           Permission ( Reusing this file) | 
           
             PD-old 
            | 
          
         
         
        
         
        
         Licensing 
        
         
          | Public domainPublic domainfalsefalse | 
         
        
        
         
          | 
           
           | 
          This media file is in the  public domain in the  United States. This applies to U.S. works where the copyright has expired, often because its first  publication occurred prior to January 1, 1923. See  this page for further explanation. 
           | 
          
           
           | 
         
         
          | 
           
           | 
          This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the  rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See  Wikipedia:Public domain and  Wikipedia:Copyrights for more details. | 
          
           | 
         
        
        
        
        
       File usage
       
        The following pages on Schools Wikipedia link to this image (list may be incomplete):
        
        
       
      SOS Children has brought Wikipedia to the classroom. By supporting vulnerable children right through to adulthood, SOS Children makes a lasting difference to the lives of thousands of people. Education is a key part of our work, and our schools provide high-quality teaching to the children in our care. Sponsoring a child is the coolest way to help.