Before the industrial revolution, under the British colonial rule, the colonial economy was developed.

2. During the first industrial revolution (1mid-8th century-1970s), politics, 1775- 1783 overthrew British colonial rule and gained national independence after the North American War of Independence; 1776 issued the declaration of independence; Implement the 1787 constitution and establish a presidential system and political system; 186 1- 1865 American civil war maintained and consolidated national unity;

Economy, completed the industrial revolution from the late18th century to the mid19th century, and promoted the rapid development of capitalist economy;

Science and technology culture, Fulton invented steamboat, realistic writer Mark Twain, etc. Enlightenment ideas such as democracy, equality and freedom have been widely spread;

Externally, 1843, signed the Wang Xia Treaty with China, participated in the Second Opium War and signed the Tianjin Treaty, participated in the suppression of the Taiping Heavenly Kingdom movement, and invaded Japan to force it to open up.

3. During the second industrial revolution (65438+11970s-19 17), politics, presidential harmony and democratic political development;

With the rapid development of economy and economy, the total economic output exceeds that of Britain, and monopoly capitalist organizations have emerged to strengthen the export of foreign capital and occupy the world market;

Science, technology and culture, Edison's electric light and many of his inventions have pushed mankind into the electric age. At the beginning of the 20th century, Einstein put forward the theory of relativity, and American film art developed rapidly.

Externally, we stepped up colonial expansion, competed with established capitalist countries for hegemony, and participated in Eight-Nation Alliance's war of aggression against China and World War I.

Four. 19 17 During World War II

Economy, 1929- 1933 The economic crisis began to spread from the United States, and the United States implemented Roosevelt's New Deal, creating a new model of state intervention in economic development;

Externally, engage in trade wars and participate in World War II.

After the May 2nd War,

Politics, establishing the Yalta system with the United States and the Soviet Union as the core; Carry out hegemonism and rise the cold war; In Asia, the Korean War was launched in 1950s, and the Vietnam War was launched in 1960s and 1970s. Carry out Truman Doctrine, Marshall Plan and other cold war policies in Europe to contain the Soviet Union, establish the North Atlantic Treaty Organization, and split Germany; China was hostile to China in the early days of its founding; In the 1970s and 1990s, American hegemony was challenged, and peaceful evolution led to drastic changes in Eastern Europe and the disintegration of the Soviet Union. After 1990s, we actively promoted unilateralism and tried to establish a unipolar world. Use NATO to interfere in other countries' internal affairs; 1999 bombing yugoslavia; Sent troops to Iraq in 2003;

Economically, the dominance of the capitalist world economy is established through the Bretton Woods system and the international trade system; The United States strengthens state intervention in the economy; After 1973, "stagflation" occurred, and the United States adjusted its policies to reduce intervention, sold some state-owned enterprises, and cut social welfare expenditures; Since the 1990s, it has actively followed the trend of globalization, established the North American Free Trade Area, and joined the Asia-Pacific Economic Cooperation, occupying a dominant position in globalization and leading the global tide.

Science, technology and culture, 1945, the first atomic bomb exploded successfully, 1946, the first electronic computer was born in the United States, 1954, the first hydrogen bomb exploded successfully,1/kloc-0, the American Apollo landed on the moon.

Summary of July 1 day