Twenty-first

The twenty-first century starts in just a few years.

Esperanto is the language of the twenty-first century.

There were many technological advances at the beginning of the twenty-first century.

The illiterate of the twenty-first century will not be those who cannot read and write, but those who cannot learn, unlearn and relearn.

Today is Saturday, the twenty-first of October.

At three o’clock on the morning of the twenty-first of June, we were awakened and notified that the Azores islands were in sight.

2001 is the year when the twenty-first century began.

The twenty-first century begins in 2001.

We are in the twenty-first year of the twenty-first century.

The last correction was made on the twenty-first of August.