The International Day of Human Space Flight was observed across the world on April 12, 2019. The day celebrates the anniversary of the first ever human space flight undertaken by Yuri Gagarin, a Soviet Union citizen then.
Gagarin carried out Vostok 1 space flight on April 12, 1961, making one orbit around the Earth in over 108 minutes in the Vostok 3KA spacecraft. The spacecraft was launched by Vostok-K launch vehicle. This space flight opened the way for space exploration for the benefit of all humanity.
The United Nations General Assembly (UNGA) through its resolution on April 7, 2011 proclaimed that International Day of Human Space Flight will be observed annually on 12 April.
The day is also observed as ‘Cosmonautics Day’ in Russia and some other countries.