Hubert H. Humphrey gives a rousing speech on the subject of civil rights for African Americans at the Democratic National Convention in Philadelphia. Humphrey opposed an effort by Harry S. Truman's supporters to put a weak civil rights plank in the Democratic platform in order to carry the southern states. The speech marks the beginning of Humphrey's rise to national attention and is a turning point in the Democratic Party's shift from a generally segregationist party to one advocating full legal rights for minorities.