1937: Guernica, Spain - German planes, aiding insurgents in the Spanish Civil War, bomb the historic Basque town of Guernica in Northern Spain, killing women and children and inflaming world opinion against facism.
1937: USA - Hindenburgairship crash - broadcast coast to coast in US
12 Mar 1938: Austria - Hitler annexes Austria; Neville Chamberlain decides not to help Czechoslovakia or French, who have treaty obligations to Czechs, Hitler tells Chamberlain if he can have Czechoslovakia he will not annex other countries, Chamberlain falls for it
3
1939
1939: UK - First Commercial Flight Over the Atlantic
1775 - 1853 (~ 78 years)