The Industrial Revolution made machine based manufacturing more common, and increased the population and average income. Instead of farming, people came to cities to work. Women and children worked in factories as well. Those are the effects that changed the United States.
The French Révolution came with the Idea of a secular state/ laic state (The government & the Church are separate.)
So, The French Revolution broke apart the role & power that the Church had on France.
He was 33 years old when he signed the Declaration of Independence.
The manifest destiny wanted to gain the whole area of the present united states and stretch from coast to coast :)