Examples of use of 21st century
1. David Self is the author of 21st Century Christianity and 21st Century Islam (Hodder Wayland)
2. What I‘m trying to deal with now is a 21st century situation and to create a 21st century welfare state.
3. I believe I am a 21st century Liberal and I am determined to lead a 21st century Liberal party.
4. It called Bush a "21st century Hitler" and British Prime Minister Tony Blair a "21st century Mussolini."
5. "It‘s completely unacceptable in the 21st century.