On Saturday, Prince Harry and Meghan Markle will exchange wedding vows at Windsor Castle. So what happens to the American citizenship status of newest member of Britain’s royal family?

The decision of Brown v. Board of Education of Topeka on May 17, 1954 is perhaps the most famous of all Supreme Court cases, as it started the process ending segregation. It overturned the equally far-reaching decision of Plessy v. Ferguson in 1896.

For the first time in any court, a federal judge in Seattle has ruled that transgender people are entitled to the fullest protection of the Constitution against discrimination.

It was on this day in 1963 that the Supreme Court handed down the Gideon decision, which guaranteed the rights of the accused to have a public defender in court.

On March 6, 1857, the Supreme Court handed down its decision in the Dred Scott case, which had a direct impact on the coming of the Civil War and Abraham Lincoln's presidency four years later.

On March 3, 1820, Congress approved the Missouri compromise, a law that maintained a balance in the Senate between free and slave states. The pact only lasted 24 years, and its elimination was one of the contributing factors that led to the Civil War.

On February 15, 1879, President Rutherford B. Hayes signed a new law that would admit women as members of the Supreme Court bar and allow them to submit and argue cases at the high court.

On January 22, 1973, the Supreme Court handed down a decision that continues to divide the nation to this day.

January 1 is one of the most noteworthy days in American history, marking President Abraham Lincoln’s decision to issue the Emancipation Proclamation.

On November 3, 1884, the United States Supreme Court issued one of its most controversial decisions, when it said that American Indians who paid taxes didn’t have the right to vote in elections.