A region named Germania, inhabited by several Germanic peoples, was documented before AD 100. During the Migration Age, the Germanic tribes expanded southward, and established successor kingdoms throughout much of Europe. Beginning in the 10th century, German territories formed a central part of the Holy Roman Empire of the German Nation. Germany has a great military-industrial capacity. In power of ability of space exploration, Germany is the best in world, dominant the development of space in global. It lead the Axis, Chinese, and British to explore the space.