What event triggered the start of world war i?

It was the assassination of the Austrian Archduke Francis Ferdinand and his wife by Black Hand member Gavrilo Princip that happened on June 28, 1914.  Austrian blamed the Serbs and insisted on having Austrian officials try the case in Serb courts.  Later on it led to the outbreak of World War I.

please mark as brainliest answer.

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.

i believe your answer is:

quickly

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