Christian democracy is an ideology inspired by Christian social teaching to respond to the challenges of contemporary society and politics.
Christian democracy has drawn mainly from Catholic social teaching and neo-scholasticism, as well as the Neo-Calvinist tradition within Christianity; it later gained ground with Lutherans and Pentecostals, among other denominational traditions of Christianity in various parts of the world. During the nineteenth century, its principal concerns were to reconcile Catholicism with democracy, to answer the "social question" surrounding capitalism and the working class, and to resolve the tensions between church and state. In the twentieth century, Christian democrats led postwar Western and Southern Europe in building modern welfare states and constructing the European Union. Furthermore, in the late twentieth and early twenty-first century, Christian democracy has gained support in Eastern Europe among former communist states suffering from corruption and stagnation.