The factors which lead to the economic development of the middle class was the postwar expansion of goods and trade. This enabled the people to acquire and sell more things and which led to the development of the middle class that could afford more things than the working class.
The answer is China, hoped I helped
A. They commuted the Boston tea party in rebellion to the high taxes they received from the British.
It's a false legend promoted by today's democratic governments.
In fact democracy in Ancient Greece wasn't how we know it today:
-It was only limited at the city of Athen
-Only adult rich men born in Athen with both the parents citizens of Athen could vote, in fact that was a minority
Most important
-People absolutely didn't like democracy, not who couldn't vote, they didn't care, but philosophers like Plato.
If you want I'll link sources in the comments, now I'm not at home.
This would be the 14th amendment.