May 1939

Tuesday 02:

Lou Gehrig's streak of 2130 consecutive Major League Baseball games played comes to an end. The record will stand for 56 years before Cal Ripken, Jr. breaks it.

Sunday 14:

Lina Medina, becomes the world's youngest confirmed mother in medical history at the age of five.

Monday 22:

World War II: Germany and Italy sign the Pact of Steel.

Tuesday 23:

The U.S. Navy submarine USS Squalus sinks off the coast of New Hampshire during a test dive, causing the death of 26 sailors. The remaining 32 crewmen and one passenger are rescued the following day.

Saturday 27:

DC Comics publishes its second superhero in Detective Comics #27; he is Batman, one of the most topical comic book superheroes of all time.