The relationship between Poland and the United States has existed for several centuries, as early as the Revolutionary War some of the key figures were great Polish military heroes, such as Casimir Pulaski and Tadeusz Kosciuszko. Continuing and strengthening the relationship between these two countries over the years are the many Poles who have immigrated to the United States. Recently, the Library of Congress digitized one of the most interesting (and little-known) documents in their collection, the Polish Declarations of Admiration and Friendship for the United States. The 111-volume collection was given to President Calvin Coolidge in 1926 to commemorate the 150th anniversary of US independence. These ornately decorated volumes were signed over an eight-month period by nearly one-sixth of Poland's population in 1926, totaling close to 5.5 million signatures. The Library of Congress has digitized the first eleven volumes, and placed them online here for consideration by genealogists, historians, and other interested parties. The first several volumes contain the signatures of government officials, artists (including full-size works of art), and signatures from three institutions of higher learning. Visitors can search the contents by keyword, geographic locations, and by title. Overall, this is a rather remarkable collection, and one that will merit several visits.