What is the section of the Constitution called that serves as an introductory statement and comes before the actual articles?

In an economic downturn, what can happen in countries that depend on high taxes to fund social programs?

Which action by the us war department angered chief red cloud to the point that he refused to sign the treaty of fort laramie ? a) the killing of buffalo by the united states troops b) the appointment of troops to the powder river basin c) the burning of parts of the powder river basin d) the murder of chief red cloud’s wife

What was the significance of the battle of saratoga