On 9 September 1919, the National Assembly of Armenia founded the History Museum of Armenia. The museum opened to visitors on August 20, 1921. Its first director was Yervand Lalayan.
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2010
On May 24, the underground parking for 500 cars built under Yerevan Freedom Square was opened.
2011
On July 7, Lyon Park has been opened as a symbol of friendship between Yerevan and Lyon. In 2010-2011 with the support of the City of Lyon, the park was completely renovated.