Which states had the highest percentage of immigrants in 1860?

According to the article, what did plato and aristotle have in common?

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 what decade did the following national event occur? the u.s. ran a trade deficit and passed nafta. 1960s 1970s 1980s 1990s