WHAT ALL HAPPENED MAY TO AUGUST 1914
Find out what all happened May to August 1914

The funeral of Archduke Franz Ferdinand and his wife Sophie takes place in Vienna, six days after their assassinations in Sarajevo. (4. July 1914)

World War I: the Royal Navy defeats the German fleet in the Battle of Heligoland Bight. (28. August 1914)

Serbia and Bulgaria interrupt diplomatic relationship. (26. July 1914)

World War I: German forces occupy Brussels. (20. August 1914)

World War I: Serbia declares war on Germany; Austria declares war on Russia. (6. August 1914)

The Ocean liner RMS Empress of Ireland sinks in the Gulf of Saint Lawrence with the loss of 1,024 lives. (29. May 1914)

World War I: Battle of Cer begins. (16. August 1914)

The Crown council of Romania decides for the country to remain neutral in World War I. (21. July 1914)

World War I: Austria-Hungary declares war on Serbia after Serbia rejects the conditions of an ultimatum sent by Austria on July 23 following the assassination of Archduke Franz Ferdinand. (28. July 1914)

Mexican Revolution: Pancho Villa takes Zacatecas from Victoriano Huerta. (23. June 1914)

World War I: Battle of Stallupönen – The German army of General Hermann von François defeats the Russian force commanded by Paul von Rennenkampf near modern-day Nesterov, Russia. (17. August 1914)

World War I: the United Kingdom declares war on Austria-Hungary; the countries of the British Empire follow suit. (12. August 1914)

World War I: The First Russian Army, led by Paul von Rennenkampf, enters East Prussia. (15. August 1914)

The U.S. Congress forms the Aviation Section, U.S. Signal Corps, giving official status to aircraft within the U.S. Army for the first time. (18. July 1914)

World War I: First Battle of the Atlantic – two days after the United Kingdom had declared war on Germany over the German invasion of Belgium, ten German U-boats leave their base in Heligoland to attack Royal Navy warships in the North Sea. (6. August 1914)

World War I: the Battle of Haelen a.k.a. (Battle of the Silver Helmets) last cavalry style attack from the German army on the city of Halen, Belgium. (12. August 1914)

Jina Guseva attempts to assassinate Grigori Rasputin at his home town in Siberia. (29. June 1914)

World War I: The German minelayer Königin Luise lays a minefield about 40 miles (64 km) off the Thames Estuary (Lowestoft). She is intercepted and sunk by the British light-cruiser HMS Amphion. (5. August 1914)

World War I: in Belgium, British and German troops clash for the first time in the war. (22. August 1914)

World War I: Battle of Mons; the British Army begins withdrawal. (23. August 1914)