A campaign slogan for Martin Van Buren could be "To keep America prospering".
This would be because the main idea that he had was to keep the policies that Jackson tried to implement and develop them further because he was a supporter of those ideas. He believed Jackson to be a good president and wanted to keep building the state based on Jackson's ideas, so those who liked Jackson could easily support him.
William Henry Harrison's slogan could be "For the people and against the parties"
This is because one of his main ideas was to repeal the spoils of war system that Jackson had implemented and make the government fully based on the system of merit. He believed that the government should consist of people who are qualified and not of those who supported the current president regardless of their qualifications.
Answer: the invention of the telescope
Explanation: Galileo Galilei, he was a Italian astronomer, engineer, philosopher, physicist, and mathematician, closely related to the scientific revolution.
Answer: Battle of the Monitor and Merrimack
During the 1862 Battle of Hampton Roads, the CSS Virginia took part in the first naval battle between ironclads when it fought the Union ship, the B. Monitor. In fact, the CSS Virginia was built of the remnants of the Merrimack which is why the battle is also known and the Battle of the Monitor and Merrimack
Explanation:
To start boycotts against the government