The Chalcedon Foundation is a Christian organization founded in 1965 by R.J. Rushdoony. It promotes the application of Christian principles to all areas of life, including politics, education, and economics. The foundation emphasizes the importance of Biblical law and seeks to encourage a society that reflects these values. Chalcedon publishes books, articles, and other resources to support its mission. It also hosts conferences and events to engage with individuals and communities interested in Reconstructionism, a movement that advocates for the transformation of society through a return to Christian ethics and teachings.