NEW YORK (CBSNewYork) — Happy birthday, Lady Liberty!

The Statue of Liberty turned 131-years-old on Saturday.

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The monument in New York Harbor has served as a symbol of freedom since it was gifted to the United States from France.

A museum honoring that history is now under construction.

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Barges carrying concrete trucks will arrive Saturday on Liberty Island, where crews will be pouring concrete to start construction on the first level.