Keywords: 
• 劳厄 /
• X射线 /
• 晶体衍射

Abstract: In April 1912, Friedrich, Knipping and Laue discovered X-ray diffraction in a CuSO4 crystal. Later, Laue derived the famous Laue equations which explain the diffraction phenomenon. For this, Laue was awarded a Nobel Prize for Physics in 1914. In 1912 W. H. Bragg and W. L. Bragg received news of Laue "s discovery, and from X-ray diffraction experiments in a ZnS crystal they derived the famous Bragg equa- tion. For this work, father and son were together awarded the Nobel Prize for Physics in 1915. To com- memorate the 100th anniversary of the discovery of X-ray diffraction, this article reviews the important con- tributions of the early pioneers and their historic impact on science and technology worldwide.