Max Planck proposed Planck’s Law, a new law of physics for black-body radiation.
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University of California scientists found evidence that life on Earth probably began 4.1 billion years ago.
Cher's 'Believe' was released and became the Billboard 1999 Song of the Year.
Germany's oldest university, and one of the world's oldest surviving universities, The Universität Heidelberg, held a lecture for the first time.
German professor Martin Luther became a doctor when he was awarded his Doctor of Theology from the University of Wittenberg, Germany.
Napoleon was forced to retreat from Germany after the Battle of Leipzig.
