On his 101st birthday, Yerevan Mayor Tigran Avinyan awarded Sergey Teryan, Candidate of Technical Sciences, with the commemorative medal “Erebuni-Yerevan 2800th Anniversary”, in recognition of his lifelong professional contributions and service to the city of Yerevan. 
The 101-year-old Yerevan resident is the author of 29 scientific works, three academic books, five inventions, and 98 innovative and practical proposals. 
His career has been defined not only by scientific and technical achievements but also by a commitment to preserving national heritage and public values.
Extending his congratulations and wishing Sergey Teryan good health, Mayor Tigran Avinyan noted that he remains an exemplary figure known for his scientific legacy and rich life experience.