January 1, 1942
1942 battle involving Japanese Empire and Dutch Empire
1942 A battle on the Pacific theatre of World War II
Planned World's Fair in Rome cancelled due to WWII
Massacres of Poles in Volhynia and Eastern Galicia — massacre of Poles by Ukrainian nationalists during World War II
Sonderkommando — work units of German Nazi death camp prisoners forced to dispose of corpses
Declaration by United Nations — treaty
Esposizione Universale di Roma — project for the 1942 Rome Universal Exposition
1942 South American Championship — Football tournament edition
Solomon Islands Campaign — 1942 major campaign of the Pacific War of World War II
1942 culmination of the Japanese invasion of the Philippines during World War II