Archduke Ferdinand got assassinated in a car. They were assassinated in Europe on June 28, 1914. It was there national day and got shot during their celebration.
The Germans sank the Lusitania. After the Germans sank the Lusitania the Zimmerman telegram was sent to Mexico saying if you become allies with Germany we will then take back our country's we lost in the Mexican American War. These actions made them want to go to war.
Germany gives up
There were lots of alliances with other country's in WW1 were country's come together. The allies were Russia, Italy, France, and Great Britain. The Central powers were Germany, Austria Hungary, Ottoman Empire, and Bulgaria.
The treaty that ended WW1
During WW1 everyone wanted to win so they tried making the best of the best technology. Technology including poison or chemicals, new guns, flame throwers, and also aircrafts. If you ever use poison in war you'll be fined and probably killed using poison in war is now illegal.
Germmany couldnt produce any more armaments to keep fighting and also to grow food. Germany was in an awful state at war loosing almost 2,000,000 men in battle. Every state in battle wanted revenge on Germany
After Germany surrendered all of the states agreed to stop fighting. After everyone agreed to stop Germany signed a treaty with all of the allied states. The treaty was called the treaty of Versallies. The treaty imposed very rigid restrictions against Germany.