The number of interstate compacts began to grow in 1921 with creation of

Which was the outcome of the six-day war of 1967

One drawback of voluntary trade is that it a. requires two groups to use a common language b. can make one group dependent upon another for necessary goods c. doesn't occur unless there is a shortage of goods for at least one group d. forces groups to rely on themselves to produce all the goods they need

In which country were apartheid laws created that prohibited interracial marriage and otherwise segregated the races?