Hydrogen, Lithium, Sodium, Potassium, Rubidium, Caesium, Francium
The answer is A... sort of. Two-thirds (34) of the state legislatures may apply to Congress to call a Convention of the States to propose amendments to the Constitution. Then, three-fourths (38) of the state legislatures must ratify those proposals before they actually become amendments to the Constitution.
Ancient Greece introduced to them a democratic form of government.
The Atlantic Slave Trade was mostly organized in West Africa.