The general plan of Yerevan was created by Alexander Tamanyan. The plan was updated in 1932.
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1679-1680
Kanaker resident Khoja Plav reconstructed the Karmir (Red) Bridge, one of the three bridges over 1804-1813 the Hrazdan River. The bridge was named "red" because it was built of red tuff.
1907
The Shustov & Sons Company set in operation the first power plant on the Hrazdan River.
