Condoleeza Rice was confirmed Secretary of State 18 years ago today, making her the highest ranking African American woman ever to serve in a presidential cabinet.

One hundred twenty-seven years ago today, the Austrian newspaper of record, "Die Presse" announced a revolutionary moment in the history of science, Dr. Wilhelm Röntgen's discovery of X-rays. Röntgen, a German physicist, was working with cathode ray tubes in his laboratory when he noticed that a fluorescent screen near the tube was glowing, even though the tube was wrapped in heavy black paper to block any light from escaping.