The answer to this question is: Invention
The romans civilization was known as the civilization that made the most inventions during that period.
One of their famous inventions is the development of wheels, that allow us to carry several objects that weigh several times heavier compared to our body weight.
Demosthenes was a proud Greek who disliked the Macedonians as a nation, but he also hated the Macedonian people and everyone who lived on that geographical area. What Demosthenes wanted for the city-states was that they would rise up against them - this they eventually did too, so the answer would be; yes, they followed his "advice".
Answer:sibling rivalry
Explanation:
What is sibling rivalry?
This is an animosity and fighting between sibling that occurs due to the arrival or birth of a new child in a family .
The first child or older child may feel a bit of jelousy for this new born child and this start as soon as the child is born.
The older child may feel like their parents like this child more than they love him or her because of this they may act spiteful towards their sibling .
To them this may feel like the only way to take out these frustrations by being mean to their siblings.
Most of the times they do this because of their level of maturity hasn't real reached that stage where they can understand that the love of their parents can be split equally hence they don't do this because they sincerely hate their siblings; which may be the reason why Ethan regretted at the end.
It would be the Hacienda system. I’m not sure if your talking about Spanish slavery but if you are it’s the Hacienda system because it functioned by keeping the people working on the land in debt in some way or another so that they could not leave.
The innovation allowed middle-class Americans to maintain a front lawn in the suburbs is the Mass-produced mowers.
<h3>How lawn mower is made?</h3>
In 1902. this was known to be the year that the the first commercially produced power mower was known to have been made and designed by a man called James Edward Ransome.
Note that an innovation is seen as any kind of tool or machine that tends to make work easy for humans,
Therefore, based on the above, The innovation allowed middle-class Americans to maintain a front lawn in the suburbs is the Mass-produced mowers.
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