7.8-magnitude earthquake that struck Erzincan in eastern Turkey on December 27, 1939

8th Chess Olympiad — FIDE chess tournament for national teams

1939–45 part of the Eastern Front during WWII

1939 New York World's Fair — fair held at Flushing Meadows–Corona Park in Queens, New York

White Paper of 1939 — 1939 statement of British policy in Palestine

EuroBasket 1939 — 1939 edition of Eurobasket

1939 South American Championship — football tournament

Italian invasion of Albania — 1939 World War II invasion

1939 early battle of World War II

Porajmos — mass murder against Roma people in Europe

Military battle in 1939