4th August 

1914 – Germany declared war on Belgium

1914 – Britain declared war on Germany.

1914 – The US declared neutrality.

A woman gives flowers to a German soldier leaving for the front, Berlin, August 1914 pic.twitter.com/AbpfIdFCN9
— History In Pictures (@HistoryInPics) August 5, 2014

1944 – Anne Frank was arrested in Amsterdam by German Security Police (Grüne Polizei) following a tip-off from an informer who was never identified.1964 – FBI agents uncovered the bodies of three missing civil rights workers at a dam near Philadelphia, Mississippi.