Answer:
John Brown was a martyr
Explanation:
John Brown became a martyr who seeks to end slavery in America. He was a radical abolitionist. Brown set a group to stop the capture of escaped slaves after the Fugitive Act was passed. Brown found proslavery supporters to make Kansas a free state, he went west to join the cause. He became obsessed with the idea of taking action to help bring justice for enslaved Black people.
Lee Harvey Oswald was responsible for killing/shooting John F. Kennedy.
He went to Texas to raise more Democratic Party presidential campaign funds, wanted to begin his little 'quest' for reelection, and because the Kennedy-Johnson ticket just barely won Texas.
The answer is charcoal cooking fires.
They reduce the time (by making it faster) and reduce the cost of trading (by making it efficient).
