The systematic annihilation of the buffalo hunted by the Plains Indians, encroachment on their lands, and treaties not worth the paper they were written on led to Native Americans being herded into reservations, deprived of both their livelihoods and their spiritual connection to their land. Nineteenth-century immigration drastically altered the cultural landscape as settlers of predominantly British stock were joined by Central Europeans and Chinese, many attracted by the 1849 gold rush in California. The South remained firmly committed to an agrarian life heavily reliant on African American slave labor. Tensions were on the rise when abolitionist Abraham Lincoln was elected president in 1860. The South seceded from the Union, and the Civil War, by far the bloodiest war in America's history, began the following year. The North prevailed in 1865, freed the slaves and introduced universal adult male suffrage. Lincoln's vision for reconstruction, however, died with his assassination. America's trouncing of the Spaniards in 1898 marked the USA's ascendancy as a superpower and woke the country out of its isolationist slumber.

　　The US still did its best not to get its feet dirty in WWI's trenches, but finally capitulated in 1917, sending over a million troops to help sort out the pesky Germans. Postwar celebrations were cut short by Prohibition in 1920, which banned alcohol in the country. The 1929 stock-market crash signaled the start of the Great Depression and eventually brought about Franklin Roosevelt's New Deal, which sought to lift the country back to prosperity. After the Japanese dropped in uninvited on Pearl Harbor in 1941, the US played a major role in defeating the Axis powers. Atomic bombs dropped on Hiroshima and Nagasaki in 1945 not only ended the war with Japan, but ushered in the nuclear age. The end of WWII segued into the Cold War - a period of great domestic prosperity and a surface uniformity belied by paranoia and betrayal. Politicians like Senator Joe McCarthy took advantage of the climate to fan anticommunist flames, while the USSR and USA stockpiled nuclear weapons and fought wars by proxy in Korea, Africa and Southeast Asia. Tensions between the two countries reached their peak in 1962 during the Cuban Missile Crisis.

　　The 1960s was a decade of profound social change, thanks largely to the Civil Rights movement, Vietnam War protests and the discovery of sex, drugs and rock & roll. The Civil Rights movement gained momentum in 1955 with a bus boycott in Montgomery, Alabama. As a nonviolent mass protest movement, it aimed at breaking down segregation and regaining the vote for disfranchised Southern blacks. The movement peaked in 1963 with Martin Luther King Jr's 'I have a dream speech' in Washington, DC, and the passage of the landmark 1964 Civil Rights Act and 1965 Voting Rights Act. Meanwhile, America's youth were rejecting the conformity of the previous decade, growing their hair long and smoking lots of dope. 'Tune in, turn on, drop out' was the mantra of a generation who protested heavily (and not disinterestedly) against the war in Vietnam. Assassinations of prominent political leaders - John and Robert Kennedy, Malcolm X and Martin Luther King Jr - took a little gloss off the party, and the American troops mired in Vietnam took off the rest. NASA's moon landing in 1969 did little to restore national pride. In 1974 Richard Nixon became the first US president to resign from office, due to his involvement in the cover-up of the Watergate burglaries, bringing American patriotism to a new low.