The Medici family was an extremely powerful Italian family that controlled the largest bank in Europe during the Renaissance and helped contribute to the great artistic works of the time. Between 1430 and 1470 they spent the equivalent of 500 million dollars commissioning paintings, sculptures, city squares and buildings. Several of Lorenzo Medici’s court members would become some of the world’s most famous artists, such as Piero, Leonardo da Vinci, and Sandro Botticelli. Even Michelangelo, painter of the Sistine Chapel, lived with Lorenzo for 5 years and was a close friend of the family.

Maximilien Robespierre was the leader of the Jacobins during the infamous Reign of Terror (1793 to 1794).

He was well-known for spearheading efforts to arrest and execute thousands of individuals for the alleged crime of being an anti-revolutionary. He himself was arrested and subsequently guillotined on 28 July, 1794.

The Jacobins most strongly embodied feelings for revolution against the French monarchy. Although the Cordeliers were left-leaning, they were not as confrontational or radical as the Jacobins. The other answers were centrist or right-wing groups, and are therefore incorrect.

Before the French Revolution, France was divided into three political classes, or estates. Members of the First Estate (the clergy) and the Second Estate (the nobility) enjoyed many privileges denied to the Third Estate, which made up most of the population, had few rights, and paid higher taxes. The Third Estate, increasingly dissatisfied with these unfair conditions, rebelled and overthrew the established monarchy.

Kristallnacht was a coordinated attack on Jewish people living in Germany in 1938, widely considered to be the beginning of The Final Solution and The Holocaust. The event was carried out by German military authorities as well as German citizens. Over 1,000 synagogues were burned, as were 7,000 Jewish businesses and homes. The word Kristallnacht means "Night of Broken Glass", a name given because of the plethora of glass shards following Jewish property being vandalized.

The correct chronology of these events is:

World War 1, Bolshevik Revolution, formation of the Soviet Union, World War II

The Bolshevik Revolution was enabled by Russia's participation in World War 1, which resulted in much of the Russian army being in a state of open mutiny. Following a brief period of dual leadership, the Soviet Union was formed in 1922 and lasted until 1991. The Soviet Union participated in World War 2 as an ally to the United States.

William Wilberforce (1759 - 1833) was an early leader of the movement to end slavery in the British empire. He became a politician early in his life and would go on to campaign tirelessly against the practice of slavery.

His actions in part led to the Slave Trade Act of 1807 abolishing the Atlantic slave trade, and later on the Slavery Abolition Act of 1833, abolishing slavery in most of the British empire. He died only days after the Act was passed.

Genocide, sometimes called "Ethnic cleansing," is the attempt to cause the extinction of a particular group of people.

During World War I, Turkish soldiers slaughtered more than half the population of Armenians in the country.

Auschwitz was the most notorious of the Nazi death camps in what was known as the Holocaust, the systematic slaughter of more than 11 million civilians, half of whom were Jewish, during World War II.

Milosevic was the president of Yugoslavia in the 1990's and but was deposed and convicted of genocide and other war crimes against his own people by the United Nations.

After the Reconquista, King Ferdinand and Queen Isabella issued royal decrees declaring that Jews and Muslims had to convert to Christianity or leave Spain. The original purpose of the Spanish Inquisition was to enforce religious orthodoxy among these new converts.

The Nuremburg Laws were passed by the Nazi government in 1935. They stripped German Jews of their citizenship and prohibited marriages or other relationships between Jews and other Germans.