From the17th century, Britain followed the footsteps of Spain and began to establish colonies on the North American continent. By 1733, Britain had established 13 colonies on the Atlantic coast of North America. On the basis of the victory of the British colonial people in their struggle against British colonial rule,1July 4, 776, the Continental Congress adopted the Declaration of Independence, announcing the establishment of the United States of America. The North American War of Independence was an important historical event after the British bourgeois revolution in the17th century, and it was the "first American revolution". Lenin pointed out: "The history of modern American civilization began with a great, truly liberated and truly revolutionary war." The problem is that shortly after the independence of the United States, it began to concoct the fallacy that aggression was justified, and mainly expanded its territory through war. 1803, the Jefferson administration "bought" Louisiana west of the Mississippi River from France at a low price, which doubled the territory of the United States. 18 10, the United States invaded the western Florida that belonged to Spain in 18 19, and occupied the eastern Florida in1819, forcing the Spanish government to sell these areas to the United States. From 65438 to 0845, the United States merged Texas of Mexico into the 28th state of the United States. John O 'Sullivan, editor of American Journal and Democratic Review, first put forward the concept of "fate" in his editorials about Texas published in the July and August issues of 1845. He described the annexation of Mexico and Texas by the United States as an act of God, the so-called "theory of destiny". 1846 At the beginning of the year, when the US Congress debated the Oregon issue, Massachusetts * * * and Party Senator Robert C. Winthrop formally used the word "fate" in the congressional forum. Since then, "the theory of destiny" has become a majestic banner for the US government to expand its territory. (2)1846-1848, the United States provoked a war of aggression against Mexico, and seized four states, including Arizona, California, Nevada and New Mexico, as well as parts of Colorado and Wyoming, and seized1.2000 square kilometers of land from Mexico through the war of aggression. 1846, the United States seized part of Oregon land from Britain under the threat of war. Before the American Civil War, the area of the United States expanded from 75 1.328 square kilometers at independence and 2.05 million square kilometers at 1.783 to 7.77 million square kilometers. 1861April 15 to1865 The American Civil War from April 9 was essentially the second bourgeois revolution in the United States. The significance of the American Civil War lies in that it shattered the political power of the slave owners, made the industrial bourgeoisie master all state power, eliminated slavery that seriously hindered the development of social productive forces, and opened up a broad road for the development of the bourgeoisie. At the same time, the United States further expanded abroad. 1867, the United States "purchased" Alaska from Russia, with an area of1593,000 square kilometers. 1On April 25th, 898, the United States declared war on Spain. In May and July of the same year, the US Navy annihilated the Spanish fleet in the Philippines and Cuba. In February of the same year, the contract signed by the United States and Spain in Paris stipulated that Spain would give up its sovereignty over Cuba. After Spain's withdrawal, Cuba will be occupied by the United States. The Philippines, Puerto Rico and Guam will be ceded to the United States, and the United States will pay $20 million to acquire new territories. The United States expanded its territory to Asia through the war against the West. 1In July, 898, the United States annexed Hawaii.1In June, 899, the United States occupied wake island, divided up the Samoxi Islands with the German army, and obtained the land of East Samoxiira Island with great military strategic position and Pago-Pago Port on the island. After the United States invaded and occupied a large area of Mexico, the territory of the United States extended from the Atlantic coast to the Pacific coast. 1869, a large railway across the east and west was completed, which combined the western resources with the eastern industries and greatly accelerated the process of industrialization in the United States. By 19 14 years ago, the submarine cable was 5 16 thousand kilometers long. Through the Atlantic submarine cable, the information flow between Europe and the United States was ensured, the isolation between the United States and Europe was ended, and the economic and information exchange between Europe and the United States was greatly affected. Theodore roosevelt declared in his inaugural speech on March 4th, 1903: "We are the inheritors of the times", "Many things depend on the success of our experiment, which is not only related to our own happiness, but also to the happiness of mankind. If we fail, we will shake the foundation of world autonomy. " Texas is located in the southwest of the United States. Texas was originally inhabited by Comanche, Kiowa, Choctaw, Chickasaw, Kushata and Apache. "Texas" means "friendship" in Indian language, but the region has been in frequent wars for more than 300 years since the16th century and has been occupied by Spain and France for a long time. It is a part of Mexico after 2000. 1836, Texas declared independence; 1845, it became the 28th state and the capital of Austin. Texas is nicknamed "Lone Star State" because there is only one star on the state flag. There are about 18000 Indians in this state. Chicano (descendants of Spanish-speaking Mexicans) and blacks account for 15% and 13% of the total residents respectively.

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