Editing 1915 (section)

=== September ===
{{main|September 1915}}
* [[September 5]] – The [[Zimmerwald Conference]] begins in [[Switzerland]]. 
* [[September 6]] – The prototype [[Tanks in World War I|military tank]] is first tested by the [[British Army]].
* [[September 7]] – Cartoonist [[Johnny Gruelle|John B. Gruelle]] is given a patent for his ''[[Raggedy Ann]]'' doll.
* [[September 8]] – WWI: A [[Zeppelin]] raid destroys No. 61 [[Farringdon Road]], London; the premises are rebuilt in [[1917]], and called The Zeppelin Building.
* [[September 11]] – The [[Pennsylvania Railroad]] begins electrified commuter rail service between [[Paoli, Pennsylvania|Paoli]] and [[Philadelphia]], using overhead AC trolley wires for power. This type of system is later used in long-distance passenger trains between New York City, Washington, D.C., and [[Harrisburg, Pennsylvania]].
* [[September 12]] – French soldiers rescue over 4,000 [[Armenian genocide]] survivors stranded on Musa Dagh, a mountain in the Hatay province of [[Turkey]].
* [[September 25]]–[[October 14]] – WWI: [[Battle of Loos]] – British forces take the [[French Third Republic|French]] town of [[Loos-en-Gohelle|Loos]], but with substantial casualties, and are unable to press their advantage. This is the first time the British use [[poison gas in World War I]], and also their first large-scale use of 'New' (or [[Kitchener's Army]]) units.
* [[September 30]] – WWI: [[Serbian Army]] [[private (rank)|private]] [[Radoje Ljutovac]] becomes the first soldier in history to shoot down an enemy aircraft, with [[Anti-aircraft warfare|ground-to-air]] fire.