Answer:
I believe the answer is Numbering.
Explanation:
To be honest, I dont know. I'm actually not an American. :)
But If i had to pick one major event...it would be making George Washington the president.
To explane.
George Washington's presidentsy in a way made America, in some aspects, what it is today.
Now imagine if he was not made a president but chose to be a dictator. I know its funny and my nest statement is going to be even funnier.
Assassins Creed 3: The rule of King George did a decadent job in imagining and explaning this. I recommend reading its plot, I think you would find it interesting. Its full of what ifs and alternative history events.
Sorry for not giving my version but its a bit hard for me to imagine something like that.
The law changes because people were disagree about it and there's big difference from now
That would be the Ottoman Empire, after its fall, Czechoslovakia was formed, ad parts of the empire were given France and Italy, while others to the Greeks.
The gentry was the highest class, they could vote. then there was also the middle class and finally the poor.
Hope this helps!