(CNN) — Here's a look at what you need to know about the Statue of Liberty.
Facts: The Statue of Liberty was a gift to the United States from the people of France to commemorate 100 years of Franco-American friendship as well as the centennial of America's independence.
The statue is formally known as "Liberty Enlightening the World."
It was sculpted by Frederic Auguste Bartholdi. The framework was designed by French engineer Gustave Eiffel.
There are 354 steps to the crown.
There are 25 windows in the crown.
The seven rays of the Statue's crown represent the seven seas and continents of the world.
The tablet that the Statue holds in her left hand reads in Roman numerals "July 4th, 1776." (JULY IV MDCCLXXVI)
The total weight of copper in the Statue is 62,000 pounds (31 tons) and the total weight of steel in the Statue is 250,000 pounds (125 tons). Total weight of the Statue's concrete foundation is 54 million pounds (27,000 tons).
Height from ground to tip of torch - 305 ft 1in (92.99cm)
Approximately 3.5 million people visit the Statue of Liberty every year.
Timeline: 1865 - French historian and professor Edouard de Laboulaye proposes the idea of presenting the United States with a monument to commemorate the young country's upcoming centennial.
Early 1870s - Sculptor Frederic Auguste Bartholdi travels to the U.S. to drum up support for the project.
November 1875 - The Franco-American Union is formed to raise funds and carry out the project. It is decided that France will build the statue and the U.S. will build the pedestal upon which it will stand.
1875-1882 - French citizens are enthusiastic about the project and raise approximately $250,000 through fundraisers and lotteries. The French government does not contribute to the building of the statue.
1876 - The completed torch and the right forearm of Lady Liberty are displayed in Philadelphia and New York City to encourage donations.
1883-1885 - Publisher Joseph Pulitzer champions the project in the pages of his New York World newspaper and Americans grow enthusiastic about the statue.
July 1884 - Lady Liberty is completed in France.
June 1885 - The statue arrives in New York Harbor aboard the French ship "Isere."
April 1886 - The pedestal is completed.
October 28, 1886 - President Grover Cleveland dedicates the Statue of Liberty.
October 15, 1924 - Is designated a national monument.
1933 - The National Park Service begins administering the statue.
1984 - The United Nations designates the Statue of Liberty a World Heritage Site.
July 4, 1986 - Celebrates her centennial.
September 11, 2001 - Liberty Island is completely closed to the public after the 9/11 terrorist attacks.
December 2001 - Liberty Island reopens after 100 days, but the statue remains closed.
September 2003 - The Statue of Liberty-Ellis Island Foundation Inc. begins a fundraising drive with the goal of raising $5 million dollars to build additional exits and upgrade fire and emergency systems.
March 30, 2004 - Interior Secretary Gale Norton announces that the Statue will reopen to visitors.
August 3, 2004 - The base of the statue reopens to the public after $20 million worth of safety measures are implemented.
September 18, 2007 - Park officials announce that the crown will remain closed to visitors indefinitely, due to fire safety and terrorism issues.
July 4, 2009 - The crown of the Statue of Liberty is reopened to visitors.
October 28, 2011 - The Statue of Liberty celebrates its 125th anniversary.
October 29, 2011 - The Statue of Liberty closes for millions of dollars in renovations. The closure is expected to last until October 2012. Liberty Island will remain open to visitors.
October 28, 2012 - On the 126th anniversary of the statue's dedication, the Statue of Liberty re-opens.
October 29, 2012 - The Statue of Liberty closes due to Superstorm Sandy.
November 21, 2012 - The National Park Service announces that due to significant damage sustained from Superstorm Sandy, the Statue of Liberty will remain closed. It is scheduled to reopen on July 4th.