To avoid wars in the future
His results gave the first evidence that atoms were made of smaller particles. Specially, he proved the existence of negatively charged sub-atomic particles known as electrons.
Capitalist economic systems are typically more productive in the amount of resources they develop.
In a socialist economy, the government controls the means of production. This means they would determine how many goods/resources are needed for their citizens. However, in a capitalist society, the amount of goods/resources produced is dependent on the wants of the consumer. This allows businesses to curtail their production to the needs of the citizens rather than the government.
After the war of 1812, the United States experienced a surge of NATIONALISM, or love of country.
The victory in the War of 1812 had a high psychological impact for American society, in a positive way. It was a kind of "confirmation" of the independence obtained before the same rival, to which he had once again managed to win. Nationalism and patriotic sentiment were on the top during that time.
The end of the war marked the beginning of the Era of Good Feelings, which passed between the presidencies of Jefferson and Andrew Jackson, in which there was a great economic growth of the country.