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I want an English introduction about the history of American development, thank you, preferably in Chinese and English! Urgent! Thank you very much !
The official name of the United States is United States of America.

The United States of America in North America. The territory includes 48 contiguous states in the mid-latitude region of the American continent, Alaska in the northwest of North America and Hawaii, an island country in the central Pacific Ocean. Area: 9529063 square kilometers (including the Great Lakes). Population: about 286,067,000 (2001). Capital: Washington, D.C. The population includes whites, African Americans, Spaniards, Asians, Pacific islanders, American Indians (Indians), Eskimos and Aleutians. Language: English (main language), Spanish. Religion: Protestantism, Catholicism, Judaism and Islam. Currency: USD. The terrain consists of mountains, plains, lowlands and deserts. Mountains include Appalachia, Ozark, Rocky, Cascade and Sierra Nevada. The lowest point is Death Valley in California. The highest points are Mount McKinley in alaska range and Mount Whitney in the United States. The main rivers are Mississippi, Colorado, Columbia and Rio Grande. The Great Lakes, the Great Salt Lake and Lake Okichoby are the largest lakes. The United States is a major producer of some minerals in the world, including copper, silver, zinc, gold, coal, oil and natural gas; It is also a major food exporter. Manufacturing industry includes steel products, chemicals, electronic products and textiles. Other important industries are tourism, dairy products, animal husbandry, fishing and wood processing. The United States is a bicameral republic. The president is the head of state and government. Thousands of years ago, some American Indians settled in this land. They may come from Asia. /kloc-Europeans came here to explore and settle down in the 0 th and 6 th centuries and began to replace Indians. The first European permanent residential area was St. Augustine, which was established by the Spanish in Florida in 1565. Later, the British settled in Jamestown, Virginia (1607), Plymouth, Massachusetts (1620), Maryland (1634) and Pennsylvania (16865438). A year after Carolina was awarded the British peerage, the British took new york, New Jersey and Delaware from the Dutch in 1664. The British defeated the French in 1763 (see [French-Indian War]) and politically controlled 13 colonies. The political turmoil caused by British colonial policy ended in the American War of Independence (1775 ~ 1783) and the Declaration of Independence (1776). The United States was organized for the first time under the Confederate Ordinance (178 1), and finally became a federal republic through the Constitution (1787). Subsequently, the American border from the west to the Mississippi River was confirmed, but it did not include Florida, the dependency of Spain. Through the Louisiana Purchase in 1803, the land purchased by the United States from the French almost doubled the territory of the United States. The United States went to war with Britain in 18 12 and seized Florida from the Spanish in 18 19. 1830, American Indians were moved to the land west of the Mississippi River by legislative means. /kloc-began to expand westward in the middle of the 0/9th century, especially after the discovery of gold in California in 1848 (see "Gold Rush"). The victory of the United States in the Mexican War (1846 ~ 1848) incorporated part or all of the following seven states (including California and Texas) into the United States. 1846, the United States signed a treaty with Britain to establish its northwest border. 1853, gadsden acquired land in southern Arizona. Later, the conflict between the slave plantation economy in the south and the free industrial and agricultural economy in the north split the United States, and the civil war broke out (186 1 ~ 1865, see [American Civil War]). Article 13 the constitutional amendment abolished slavery. After the reconstruction period (1865 ~ 1877), the United States experienced rapid development, urbanization, industrial development and European immigration. 1877, the United States allowed Indian reservations to be allocated to individual tribal members, resulting in a large area of land falling into the hands of whites. By the end of 19, American foreign trade had developed and acquired overseas territories, including Alaska, midway, Hawaiian Islands, Philippine Islands, Puerto Rico, Guam, wake island, American Samoa, Panama Canal Zone and Virgin Islands. 1917 ~1918 The United States participated in the First World War. 1920 giving women the right to vote; 1924 granted citizenship to American Indians. The stock market crash of 1929 led to the Great Depression. After the Japanese attack on Pearl Harbor (1941-12-07), the United States entered the Second World War. The United States dropped the first atomic bomb in Hiroshima, Japan (1945-08-06) and the second atomic bomb in Nagasaki (1945-08-09), which led to the end of this war and made the United States a leader in the western world. The United States participated in the post-war reconstruction of Europe and Japan, but fell into a cold war confrontation with the Soviet Union for 40 years. The United States participated in the Korean War. 1952 grant Puerto Rico autonomy. 1954 claims that racial segregation in American schools violates the US Constitution. 1959 Alaska and Hawaii became two states in the United States. 1964, the National Assembly passed the Civil Rights Act, authorizing full involvement in the Vietnam War. In the middle and late 1960s, riots broke out all over the United States, including racial riots and anti-war demonstrations. 1969 the United States completed the first human landing on the moon. All American troops leave Vietnam. In the Persian Gulf War (199 1), the United States led the allied forces to attack Iraq. 1992 send troops to Somalia to help the hungry. 1995 and 1999 joined the North Atlantic Treaty Organization and carried out air strikes against Serbian troops in the former Yugoslavia. 1998 w.j. President Clinton became the second president to be impeached by the US House of Representatives; He was acquitted by the Senate. 1999 Panama canal management was transferred to Panama. In 2000, George H.W. Bush became the first person to be elected president by the presidential electoral college, although his votes were slightly lower than his opponent A. Gore from 1888. 2001September 1 1 After the terrorist attacks destroyed some buildings of the World Trade Center and the Pentagon, the United States sent troops to attack the Taliban government in Afghanistan on the grounds of hiding and refusing to extradite the suspects who were the mastermind of this terrorist activity.

United States of America

The official name is the United States of America.

Federal Republic of North America.

It consists of 48 contiguous states occupying the central part of the continent, with Alaska at the northwest end of North America and Hawaii in the middle of the Pacific Ocean. The area of the Great Lakes including the United States: 3,675,031square mile (9,518,287 square kilometers). Population (estimated in 2002. ): 287,602,000. Capital: Washington, DC. The population includes people of European and Middle Eastern descent, African Americans, Hispanics, Asians, Pacific islanders, American Indians (Native Americans) and Alaska natives. Language: English (mainly), Spanish. Religion: Protestantism, Roman Catholicism, Judaism, Islam. Currency: USD. The country's regions include mountains, plains, lowlands and deserts. Mountains include Appalachia, Ozark, Rocky, Cascade and Sierra Nevada. The lowest point is Death Valley in California, and the highest point is Mount McKinley in Alaska. Within the United States, it is Mount Whitney in California. The main rivers are Mississippi, Colorado, Columbia and Rio Grande. The Great Lakes, the Great Salt Lake and Lake Okichoby are the largest lakes. The United States is one of the major producers of several minerals in the world, including copper, silver, zinc, gold, coal, oil and natural gas. It is a major food exporter. Its manufacturing industry includes steel, chemicals, electronic equipment and textiles. Other important industries are tourism, dairy products, animal husbandry, fishing and logging. The United States is a Republic with two houses; Its head of state and government is the president. This land was originally inhabited by many American Indians who may have immigrated from Asia for thousands of years. The exploration and settlement of Europeans began in the 6th century A.D./KLOC-and Indians began to be displaced. The Spanish established the first permanent European settlement in St. Augustine, Florida in 1565; The British settled in Jamestown, Virginia (1607); Plymouth, Massachusetts. ( 1620); Maryland (1634); And Pennsylvania (168 1). 1664, one year after being granted a British peerage in Carolina, the British seized new york, New Jersey and Delaware from the Dutch. Britain defeated France in 1763 (see the war between France and India), ensuring British political control over its 13 colony. The political turmoil caused by British colonial policy reached its climax in the American Revolution (1775–83) and the Declaration of Independence (1776). The United States was originally formed according to the articles of confederation (178 1), and finally became a federal republic according to the Constitution (1787). The border extends westward to the Mississippi River, excluding Florida, Spain. The Louisiana Purchase (1803) obtained the land from France, which almost doubled the territory of the country. The United States fought a war with the British for 18 12 years, and acquired Florida from Spain in 18654 38+09. In 1830, it legalized the migration of American Indians to the land west of the Mississippi River. In the middle of19th century, especially after the discovery of gold in California in 1848, the settlements spread to the far west. The victory of the Mexican War (1846–48) made seven other future states (including California and Texas) fall into the hands of the United States. The northwest boundary was determined by a treaty with Britain in 1846. The United States acquired southern Arizona through Gadsd en Purchase (1853). In the conflict between the plantation economy based on slavery in the south and the free industrial and agricultural economy in the north, it suffered division, which eventually led to the American Civil War and the abolition of slavery according to the amendment 13. After reconstruction (1865–77), the United States experienced rapid growth, urbanization, industrial development and European immigration. 1877, which authorized the distribution of American Indian reservations to various tribes, resulting in a large amount of land lost to white people. By the end of19th century, it had developed foreign trade and acquired peripheral territories, including Alaska, Midway Island, Hawaiian Islands, Philippines, Puerto Rico, Guam, wake island, American Samoa, Panama Canal Zone and Virgin Islands. The United States participated in World War I1917–18. It gave women the right to vote in 1920 and American Indians the right to citizenship in 1924. The stock market crash of 1929 led to the Great Depression. After Japan attacked Pearl Harbor, the United States joined the Second World War. The United States exploded an atomic bomb in Hiroshima (August 6, 1945) and Nagasaki (August 9, 1945), respectively, which led to Japan's surrender. Since then, the United States has become a military and economic leader in the western world. In the first decade after the war, it helped the reconstruction of Europe and Japan and was involved in the cold war competition with the Soviet Union. It participated in the Korean War from 1950 to 1953. 1952, which granted Puerto Rico autonomous federal status. Segregation in schools was declared unconstitutional in 1954. Alaska and Hawaii became states on 1959. 1964, Congress passed the Civil Rights Act, authorizing the United States to join the Vietnam War. 1In the middle and late 1960s, there were civil strife everywhere, including ethnic riots and anti-war demonstrations. The United States completed the first manned landing on the moon in 1969. All American troops withdrew from Vietnam on 1973. The United States led the coalition forces against Iraq in the first Persian Gulf War (199 1), sent troops to Somalia (1992) to help the hungry people, and participated in NATO air strikes against Serbian troops in the former Yugoslavia in 1995 and 1999. At 1998 Pres. Bill Clinton was the second president to be impeached by the House of Representatives. 1999 was acquitted by the Senate. The management of Panama Canal was transferred to Panama in 1999. In 2000, George W. Bush became the first person to be elected president by the electoral college since 1888, although he got less popular votes than his opponent Al Gore. After the attacks on the United States in September 2006 destroyed the World Trade Center and part of the Pentagon, the United States criticized the Taliban government in Afghanistan for harboring and refusing to extradite Osama bin Laden, the mastermind of terrorism.