Laika died within hours from overheating possibly caused by a failure of the central R-7 sustainer to separate from the payload. The true cause and time of her death were not made public until 2002; instead, it was widely reported that she died when her oxygen ran out on day six, or as the Soviet government initially claimed, she was euthanised prior to oxygen depletion. (3 November 1957)
There are 3393 births, 3959 deaths, 1122 murders, 498 disasters and 2088 other events about 5748 people in 6460 places until today.
Birth(+)Fact(x)Death(-) Calendar is an ongoing project since 1985 by DDV.