Why and how did worl war 1 start?

Answer 1

i think it is because of the fury between the two countrys over a pice of land i reackon it didnt need to happen waht was it for the is no reason for vilance or unhappness JUST OVER A STUPID PIECES OF LAND !!!!!!!!!!!!!!!!!!!!!!!!!thats what i think

From Brittany Jane Smith

Edit: WWI began over an assassination. But Brittany is right in a way. The Austrians did want some land from the Serbians, if I am correct, but it may be the other way around. After the Archduke of Austria was assassinated, Austria took that time to declare war on Serbia, and Russia declared war on Austria, and so on and so forth.

Answer 2

World War 1 started in 1914 due to a series of factors including nationalism, militarism, Imperialism, and the assassination of Archduke Franz Ferdinand of Austria-Hungary. The war began when Austria-Hungary declared war on Serbia, leading to a chain reaction of alliances being activated and escalating into a global conflict.