Christian teaches a variety of courses at Boston University School of Law, including Constitutional History: The Founding Years, Constitutional History: The Civil War and Reconstruction, and American Constitutional History. He was a visiting assistant professor at Boston College for several years, where he taught such courses as Europe and the Modern World, The American Civil War and Reconstruction, and U.S. Constitutional History.

Christian frequently speaks about various legal and historical topics and provides consulting services for historical programs and exhibitions. C-SPAN broadcast one of his talks. Some of Christian’s selected speaking engagements include:

  • A program about the Thirteenth Amendment for the U.S. Commission on Civil Rights held at President Lincoln’s Cottage in Washington, D.C. and televised on C-SPAN (watch it here)
  • A Massachusetts Bar Association program concerning obtaining lost profits damages for startup businesses in intellectual property litigation
  • “The Era of the War of 1812 and the Making of Modern America,” Massachusetts Historical Society in partnership with the USS Constitution Museum
  • “The Complexity of Kentucky and the Complexities of Citizenship during the Age of Emancipation,” University of Louisville
  • Keynote Speaker, Civil War Trust Teacher Institute, Boston, Massachusetts (televised on C-SPAN)
  • Boston Public Library (separate talks about citizenship during the Civil War era and Boston’s Irish Americans during the Civil War era)
  • The Franklin N. Flaschner Judicial Institute (Bench/Bar Reading Discussion Series event with judges from the Massachusetts Trial Court and Massachusetts Appeals Court concerning his book, Becoming American under Fire: Irish Americans, African Americans, and the Politics of Citizenship during the Civil War Era)
  • Various continuing education programs for secondary school social studies teachers administered by the Massachusetts Historical Society, Suffolk University, and University of Massachusetts-Boston

Believing that how animals are treated reflects on society’s values, Christian through his law practice assists various groups that advocate on their behalf.

Christian is also a member of the board of directors at ExecConnect for Student Success Inc., a Boston-based startup that uses the principles of business to teach students and other members of lower socioeconomic backgrounds the skills required to succeed. ExecConnect is developing an expansion plan to raise funds so that it can help finance the start of participants’ business ventures, providing seed funding and some guidance for students who qualify. ExecConnect aspires not only to provide theoretical skills to students, but also the opportunity to reach for success in real life.

Christian is a Fellow at the Massachusetts Historical Society and a member of the Board of Overseers at the USS Constitution Museum.