English: Albert Einstein sticks his tongue out for photographer Arthur Sasse after his 72nd birthday party on March 14, 1951. One of the most reproduced and parodied pictures of Einstein, according to reports, Einstein liked the photo so much that he requested International News copies of them for personal use as gifts.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
{{Information |Description= |Source=https://static.nationalgeographic.es/files/styles/image_3200/public/01_genius_quiz_einstein.webp |Date=1951 |Author=Arthur Sasse - International News Service |Permission=See File:Albert Einstein sticks his tongue 1951.jpg for details |other_versions=<gallery> File:Albert Einstein sticks his tongue 1951.jpg </gallery> }}