Columbia subject headings:
Christianity and other religions.
Religion and sociology.
Religion--Forecasting.
Religions--Forecasting.
Time--Religious aspects--Christianity.
Time--Religious aspects.
Twenty-first century--Religious aspects.
Harvard subject headings:
Christian sociology.
Christianity and other religions
Millennialism.
Religion and sociology
Religion--Forecasting.
Religions--Forecasting.
Time--Religious aspects--Christianity.
Time--Religious aspects.
Twenty-first century--Religious aspects.
Princeton subject headings: