Washington (CNN) – After sitting in storage for nearly a decade, George Washington’s signature statement on religious liberty will go on display this summer in the city where freedom of religion was enshrined in the Constitution: Philadelphia.

America’s first president wrote the letter to a Jewish congregation in Newport, Rhode Island, in 1790, assuring American Jews that their freedom of religion would be protected. The document will go on display this summer for the first time since 2002 in an exhibition at Philadelphia’s National Museum of American Jewish History.

For nine years, the letter has been kept out of public view, in storage at a sterile Maryland office park a few hundred feet from FedEx Field, where the Washington Redskins play. CNN took an inside look at the document in September.