How much do you know about history's most famous land sales and swindles? Find out in our Famous Land Deals quiz.
At that time, Lewis and Clark were trekking through the recently purchased Louisiana territory, all the way to the west coast.
Britain agreed to return Hong Kong to Chinese control in 1984, but the agreement didn't go into effect until 13 years later in 1997.
Britain and China went to war over Britain's opium dealings in China; after Britain won, it took Hong Kong as a reward.
The Russian Empire sold the United States Alaska in 1867.
The United States was granted Florida in the 1819 treaty, which established a border between the United States and New Spain's territory at the 42nd parallel.
The Republic of Texas became a state in 1845, after declaring itself independent from Mexico some years before.
The United States bought the Louisiana territory from France in 1803, doubling the size of the country.
War broke out between the United States and Mexico after the annexation of Texas.
The United States and Great Britain split the Oregon territory along the 49th parallel.
Hawaii was a U.S. territory before the beginning of the 20th century, but didn't become a real state until the end of the 1950s.
The United States paid France $11.25 million dollars, and canceled out $3.75 million in debt the French already owed, for a total of $15 million.
Thomas Jefferson felt uncomfortable buying the Louisiana territory because that power wasn't specifically outlined in the Constitution. He decided that the opportunity was too important for the nation, and purchased the land despite his reservations.
New Netherland became New York after it was ceded to England in 1674.
Teddy Roosevelt backed a Panamanian rebellion to strike a deal allowing the United States to build the Panama Canal.
It took the United States until 1914 to finish the Panama Canal thanks to the difficult working conditions in Central America.
After The Mexican-American War, Mexico turned over a large amount of territory comprising what is now New Mexico and California.
The Seventeen Point Agreement granted China sovereignty over Tibet, but the area remained autonomous.
Canada increased the size of its territory after receiving this land from the United Kingdom in the Rupert's Land Act of 1868.
Napoleon, looking to earn some money for France, sold off the Louisiana territory to the United States.
Alaska became an official territory in 1912, but it wasn't until 1959 that it became a state.