Ireally need ! during the 1200s, fibonacci brought numerals to europe. because he was italian, italy was the first region to start using them. these numbers made it easier to use a money-based system of trade and to keep business records.

Hindu - Arabic

Explanation:

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

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