CHICAGO – Stolen documents, military medals and other artifacts valued at about $5 million – including letters signed by Abraham Lincoln and Thomas Jefferson – were returned Wednesday to Chicago’s Polish Museum after being found in the basement of a home decades after they went missing.

The more than 120 items, which were returned following an FBI investigation, include letters and documents dating to the 18th and 19th centuries, seals, military medals and Nazi propaganda from World War II.

The pieces also included documentation about Napoleon, George Washington, John Adams and American Revolution hero Thaddeus Kosciuszko.