The U.S. Library of Congress is kicking off a campaign on Tuesday to work with other nation’s libraries to build a World Digital Library, starting with a $3 million donation from Google Inc.

Over the past decade, the American Memory Project of the Library of Congress has digitized more than ten million items to create a documentary record of Americana.

These include manuscripts, maps, audiovisual recordings, cartoons, caricatures, posters, documentary photographs, music, and, to a lesser extent, historic books. The World Digital Library would draw on a similar variety of multimedia objects.

A second project, known as the Global Gateway and introduced in 2000, involves collaborations with five national libraries in Europe and Brazil that focus on documenting ties between each of those countries and U.S. culture.