Why do we have national public holidays? What does each—and what do all—contribute to our common life as Americans? The American Calendar explores the purpose and meaning of our civic holidays, showing how their repeated celebration helps unite and identify us as a people and attaches us to our country.

Celebrating Martin Luther King Jr.
Are we at last one nation, with liberty and justice for all? Reflect on the life and legacy of Dr. King and the civil rights movement and assess their efforts to overcome racial discrimination and to promote racial equality and integration.