Tags: Holiday.
Cosmonautics Day (Russian: День Космона́втики Den Kosmonavtiki) is a holiday celebrated in Russia and some other former USSR countries on April 12. Later on since April 7 2011 the April 12 was declared as the International Day of Human Space Flight in dedication of the first manned space flight made on April 12 1961 by the 27-year-old Russian Soviet cosmonaut Yuri Gagarin.
