History - World War 1

For History, we were asked to find 3 interesting facts. (As in will not be taught.... I guess)
These are a few:

- Gavrilo Princip was the Serbian nationalist who assasinated the archduke of Austria-Hungary, Franz Ferdinand.
[ Wikipedia.com ]

- These words were used since WW1 > Over the top; Trench coat; Ace; Buddy; Pushing up the Daisies; Red Tape; Zoom; Sniper; Washout; Cootie; Tune up; Etc...
[ lou_ww1.tripod.com/myww1trench/id3.html ]

- Over 100,000 Chinese labourers were used by the British Army to dig trenches on the Western Front.
[ lou_ww1.tripod.com/myww1trench/id3.html ]

- The Original Pooh Bear was a Canadian WW1 mascot.
[ lou_ww1.tripod.com/mywww1trench/id3.html ]

- WW1 was the first war to be fought over 3 continents.
[ same as the one on the top...]

- First industrialised conflict.
[ I bet you know by now which site this is]

If the owner of any of this sources want me to delete any of this, just write it in the comments, thx.