<span>Sun Yat-sen influenced China by helping to cause the overthrow of the Ch'ing (also known as Manchu) Dynasty. By doing so, Sun ushered in an era in which various factions fought for control of China. This eventually led to the victory of the communists. Sun is revered by both the People's Republic of China (mainland China) and the Republic of China (Taiwan) as the main force in creating modern China.</span>
"The speech by President Reagan at the Berlin Wall" was considered the end of the Cold War, since the Berlin Wall was considered the most physically divisive element of the war.
Answer:
steel
Explanation:
first there was no electricity back them. second, how would paper help build a bridge and concree was already being used.