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English settlement
The English made their first settlement in Jamestown, Virginia -
Africans used as slaves
Europeans brought Africans to America to work as slave laborers on cotton and tobacco plantations in the South. -
Britain gains control
Great Britain gained control of all of North America east of the Mississippi River -
Revolution
American Revolution. Protest by French and English lead to this -
U.S. doubles in size
The United States nearly doubled in size when the government purchased the vast plains region between the Mississippi and Rocky Mountains from France -
lewis and clark
expedition explores the area of the Louisiana puurchase -
lewis and clark.
expedition of the louisiana purchase is ended -
wagon trail
began moving pioneers to the west -
civil war has ended
civil war ends . it took four years of bloody fighting and many more years of political conflicts to reunite the country -
railroad
The first transcontinental railroad across the United States was completed. -
population boom
About 17 million people lived between the Mississippi and The Pacific, railroads brought people to the west -
Land loss
Land available for settlement on the western frontier has nearly dissapeared. -
Westward expansion
The United States continiues it's westward expansion, annexing Hawaii. -
assembly line
Use of an assembly line in Ford auto plants streamlines manufacturing -
radio progamming
regular radio program by staion, KDKA in pittsburgh begins the era of mass production -
mass audience
the first mass television audience watches baseball's world series -
communist and non-communist forces
many students and others protested U.S involvement in a war between communist and the non-communist fores in vietnam -
manned exploration
U.S. manned exploration of space starts as Alan B. Shephard Jr. is launched into sub orbit of earth -
integrated circuit
the development of the integrated circuit would make the wide spread use of computers possible -
department of defense
the U.S department of defence developed a computer network that later leads to the internet -
DNA
mapping human genetic material is a break-through in bio technology
