Back Ҳ. ҟ. 661 Abkhazian 661 ق م Arabic 661 ق م ARZ 661 e.C. AST 661 да н.э. Byelorussian 661 г. пр.н.е. Bulgarian 661 v. Chr. German 661 BC English ۶۶۱ (پیش از میلاد) Persian 661 f.Kr. Frisian
| Blianta RC: 664 RC 663 RC 662 RC - 661 RC - 660 RC 659 RC 658 RC | |
| deichniúra: 690idí RC 680idí RC 670idí RC - 660idí RC - 650idí RC 640idí RC 630idí RC | |
| Aois: 8ú haois RC - 7ú haois RC - 6ú haois RC | |