I guess (c) the attack on pear harbor
The Northwest Ordinance<span>, adopted July 13, 1787, by the Second Continental Congress, chartered a government for the </span>Northwest<span> Territory, provided a method for admitting new states to the Union from the territory, and listed a bill of rights guaranteed in the territory.</span>
It took 10 years to build the panama canal :)
I would suggest you start by matching countries to the cities you recognize. For example, Rome is in Italy, which means that "Italy" is N. If you are unsure about others, I'm sure you can google a map of Europe and that will help you fill out the rest :)