Susan B. Anthony <span> was an American social reformer and feminist who played a pivotal role in the women's suffrage movement. Born into a Quaker family committed to social equality, she collected anti-slavery petitions at the age of 17</span>
Answer:
An explorer
Explanation:
Christopher Columbus was an Italian explorer and navigator who completed four voyages across the Atlantic Ocean, opening the way for European exploration and colonization of the Americas.
The age of the universe, the identity of quasars, and the existence of dark energy.
