What is an example of a topic for an informative essay about historcial events

Which passage from the gettysburg address best supports the central idea that freedom is worth the struggle

What does the document of the birtish octopus is an uderlying cause of the world war 1

Which act of the conquistador pizarro was crucial in overthrowing the inca? a. the destruction of the ancient inca city, machu picchu b. the siege of the inca capital near the cuzco valley c. the execution of the last inca ruler, atahualpa d. the unexpected deaths of 3 million inca warriors e. the murder of former inca emperor, huascar