It was reported that Albert Einstein experienced internal bleeding because of the rupturing of an abdominal aortic aneurysm. This occurred on April 17, 1955. The abdominal aortic aneurysm that was ruptured on April 17, 1955, was earlier reinforced surgically by Dr. Rudolph Nissen in 1948. Einstein refused surgery to address the issue and stated that he was ready to go. Early April 18, 1955, Albert Einstein died at age 76. Thomas Stoltz, the pathologist that conducted the autopsy of Einstein’s body removed his brain for preservation. This was done without the permission of Einstein’s family. The pathologist’s hope is that neuroscience will become so developed in the future that they will be able to discover what made Einstein so intelligent.