Answer:
slavery in the ancient world:
-involved captured prisoners for war
-often included a chance of freedom
-included diverse groups of people
slavery in the 1600s&1700s:
-was often for life
-involved organized trade networks
-was based on race
A,word of the mouth even thou natvies spoke their own language.
This Conference on the conservation of natural resources is in effect a meeting of the representatives of all the people of the United States called to consider the weightiest problem now before the Nation; and the occasion for the meeting lies in the fact that the natural resources of our country are in danger of exhaustion if we permit the old wasteful methods of exploiting them longer to continue.
1930 to 1941...............