The 3/5ths compromise was like this
The south wanted their slaves to count as votes but the north disagreed, so every 3 slaves out of 5 count as 1 vote.
The Articles of Confederation tried to <span>preserve the states' sovereignty but they failed. It ended up not giving congress enough power and the Articles of Confederation were eventually replaced with the US Constitution.</span>
The Populist Party was a third party created due to the discontent of farmers against the major political parties (Republican and Democratic parties) because of the Gold Standard issue, and because they felt ignored. This Party is often regarded as a failure because it focused on one issue (to increase the money supply) and tried to gain the support of farmers and workers, but the workers' wants and needs were different than those of the farmers, so the Populist Party didn't had all the support it needed to succeed and ended up being absorbed by the Progressive Party. Although the Populist Party didn't succeed, it helped creating awareness of the farmers conditions, so that the Republican and Democratic parties could also focus on that side of the population.
The Vietnam War. The USA became involved in Vietnam because it feared the spread of communism. The USA were unable to defeat the Vietcong and were met with growing opposition to the war back home.
