Formed a century ago, ACLS is a nonprofit federation of 75 scholarly organizations.  As the preeminent representative of American scholarship in the humanities and related social sciences, ACLS holds a core belief that knowledge is a public good. As such, ACLS strives to promote the circulation of humanistic knowledge throughout society. In addition to stewarding and representing its member organizations, ACLS employs its $140 million endowment and $35 million annual operating budget to support scholarship in the humanities and social sciences and to advocate for the centrality of the humanities in the modern world.