The US was struggling with growth during the war of 1812 because more men were dying so it was becoming harder to reproduce and make more babies and another reason is because children would die after being born because of the lack of medical knowledge
In the 1850s, new types of machinery being produced increasingly needed oil for lubrication. And the main sources for oil at the time, whaling and collecting oil from seeps, simply couldn't meet the demand. Someone had to find a way to reach into the ground and extract the oil.
Since he defeated Persia, even out numbered by 2:1, Alexander marked the end of the Persian army.
The Supreme Court decides to hear a case based on at least four of the nine Justices of the Supreme Court agreeing to grant the Petition for Certiorari. If four Justices agree to grant the petition, the Supreme Court will consider the case. ... A petition for Writ Certiorari is a request that the court hear your case.