Is the ancient calligrapher's words infringing?

The use of ancient calligraphers' fonts and handwriting is not infringing. Because copyright has a fixed number of years. The term of validity of copyright is fifty years before and after the author's death. During the period of copyright protection, the copyright of a work is protected by law. After the copyright expires, the copyright will be lost, and its works will enter the public domain and will no longer be protected by law.