What was the name given to policy of giving aggressive nations what they wanted in order to avoid war

What kind os source would a historian use to get a firsthand account of a past event

Which was the cause of the rise of the persian empire?

Select the correct answer from the drop-down menu.during the (scientific revolution, renaissance, industrial revolution), european intellectuals rejected many teachings of ancient scientists promoted by the church. to replace flawed theories, scientists began researching and conducting experiments. they used critical and reasonable thinking to draw concrete conclusions. this also led to the (scientific revolution, industrial revolution, enlightenment). it was an age that focused on using reason for understanding laws of nature and identifying humans' natural rights.