He made an invention or experiment for some type of wave and he tested it. So that's basically why he is famous.
Answer:
During Tang rule, China had its greatest influence on eastern Asia and, at the same time, carried out active trade with peoples across Eurasia. For more than 100 years, the Tang empire stretched deep into Central Asia, and various aspects of Chinese culture spread to Korea and Japan.
please mark me as brainliest
Answer:
Almost the whole of Europe and its colonial empires mobilized to wage World War I, directing almost all aspects of life including industry, finance, labor, and food production toward military purposes.
Explanation:
