It is not definitively known how or when Native Americans first settled the Americas and the present-day United States. The prevailing theory proposes that people from Eurasia followed game across Beringia, a 查看更多內容

An upper-class emerged in South Carolina and Virginia, with wealth based on large plantations operated by slave labor. A unique class system operated in upstate New York, where Dutch tenant farmers rented land from very wealthy Dutch proprietors, … 查看更多內容

Confederation and constitution
In the 1780s the national government was able to settle the issue of the western regions of the young United States, which were ceded by … 查看更多內容

Divisions between North and South
The central issue after 1848 was the expansion of slavery, with the anti-slavery elements in the North pitted against the pro-slavery elements that dominated the South. A small number of active Northerners were 查看更多內容

After a period of exploration sponsored by major European states, the first successful English settlement was established in 1607. … 查看更多內容

The American Revolutionary War began at Lexington and Concord in Massachusetts in April 1775 when the British tried to seize ammunition supplies and arrest the Patriot leaders. In … 查看更多內容

Indian removal
In 1830, Congress passed the Indian Removal Act, which authorized the president to negotiate treaties that exchanged … 查看更多內容