When was the Matenadaran built?
<think></think>Short answer The current building of the Matenadaran in Yerevan, at the end of Mashtots Avenue, was built between 1945 and 1957 according to the design of architect Mark Grigoryan. It opened to visitors in 1957, and the Matenadaran has functioned as a research institute since 1959. However, "when was the Matenadaran built…