What do the ancient civilizations of china, egypt, and greece have in common with regard to sports?

In what way did expansion and global trade during the 15th to 18th centuries affect the economies of european countries?

Which type of constitutional power allows congress to regulate immigration and naturalization?

Which consideration must be addressed when deciding for whom to produce? who can be most creative with the product? who has the largest resource pool? who has the greatest need? who can bring in the greatest profit?