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1250
magnetic compass
European sailors had started using the compass to navigate the seas -
Boston massacre
helped bring colonies together against Britain. which is what started as a minor fight and then became a turning point in the beginnings of the American Revolution -
naval force
the Continental Congress grants permission for construction and administration of the first American naval force -
Louisiana purchase
representatives of the United States and Napoleonic France conclude negotiations for the Louisiana Purchase, a massive land sale that doubles the size of the young American republic. -
ww1
1914 WWI starts. In 1918 WWI ended. This war was the beginning of other world wars -
ww2
2 war emerges because of hitler
