How did a single event start a chain reaction that sparked world war l?

August 1914. It was directly triggered by the assassination of the Austrian archduke, Franz Ferdinand and his wife, on 28th June 1914. this lead to other allied countries to get involved. After the assassination, Austria-Hungary declared war on serbia with germany backing them up. germany then declared war on russia. british forces declared war on germany and eventually everyone joined in lol.

Well, like usual, war starts with the want of land or money. And the thirst for power and land is was pretty much started the world wars

the answer is b for brother

the group i'm selecting: greeks.

a first group of greek immigrants came to the us in the 1850s. the second group came to america starting in the 1890s due to economic opportunities they didn't have back in their home caused by the hardships of ottoman rule. greek immigration was 90% male, many of them expected to work and return to greece after earning enough capital, but ultimately had to remain in the us after the greek genocide.