1940s
1940ske dassak (decade)1 January1940se suruu bhais rahaa aur31 December1949ke khalaas bhais rahaa. Ii20th centuryke 5th decade rahaa.
Ii dassak ke suruwaat me dunia bhar meWorld War IIchalat rahaa aur aur iske hoe talakCold Warsuruu hoe gais rahaa.