Billionaire real estate mogul and former reality television personality Donald Trump was the 45th president of the United States.

Joe Biden is the president of the United States. He also served as Barack Obama's vice president from 2008-2016.

Jimmy Carter was the 39th president of the United States and was later awarded the Nobel Peace Prize in 2002.

Barack Obama was the 44th president of the United States, and the first African American to serve in the office. First elected to the presidency in 2008, he won a second term in 2012.

Abraham Lincoln was the 16th president of the United States. He preserved the Union during the U.S. Civil War and brought about the emancipation of slaves.

George W. Bush was the 43rd president of the United States. He led his country's response to the 9/11 attacks in 2001 and initiated the Iraq War in 2003.

Ulysses S. Grant served as U.S. general and commander of the Union armies during the late years of the American Civil War, later becoming the 18th U.S. president.

Andrew Jackson was the seventh president of the United States. He is known for founding the Democratic Party and for his support of individual liberty.

Herbert Hoover was the 31st president of the United States, whose term was notably marked by the stock market crash of 1929 and the beginnings of the Great Depression.

George H.W. Bush was the 41st President of the United States and served as vice president under Ronald Reagan. He was also the father of George W. Bush, the 43rd President.

Richard Nixon was the 37th U.S. president and the only commander-in-chief to resign from his position, after the 1970s Watergate scandal.

John F. Kennedy, the 35th U.S. president, negotiated the Nuclear Test-Ban Treaty and initiated the Alliance for Progress. He was assassinated in 1963.

Lyndon B. Johnson was elected vice president of the United States in 1960 and became the 36th president in 1963, following the assassination of John F. Kennedy.

The fourth U.S. president, James Madison believed in a robust yet balanced federal government and is known as the "Father of the Constitution."

The 22nd and 24th president, Grover Cleveland is the only president to serve two nonconsecutive terms, as well as the first to be married in the White House.

John Adams was a Founding Father, the first vice president of the United States and the second president. His son, John Quincy Adams, was the nation's sixth president.

Woodrow Wilson, the 28th U.S. president, led America through World War I and crafted the Versailles Treaty's "Fourteen Points," the last of which was creating a League of Nations to ensure world peace.

Zachary Taylor was an American military war hero who is best known as the 12th president of the United States.

Warren G. Harding was the 29th U.S. president and served from 1921 to 1923. His term followed World War I and a campaign promising a "return to normalcy."

William McKinley is best known for being president when the United States acquired Puerto Rico, Guam and the Philippines.

George Washington, a Founding Father of the United States, led the Continental Army to victory in the Revolutionary War and was America’s first president.

John Quincy Adams was the sixth president of the United States. He was also the eldest son of President John Adams, the second U.S. president.

Sworn in as the 33rd president after Franklin Delano Roosevelt's sudden death, Harry S. Truman presided over the end of WWII and dropped the atomic bomb on Japan.

President Ronald Reagan helped redefine the purpose of government and pressured the Soviet Union to end the Cold War. He solidified the conservative agenda for decades after his presidency.