Dogs played important roles in the Atlantic slave Trade because they helped capture slaves in Africa and were used to run slaves down similarly to how dogs are still being used today in the mountains to hunt down and keep sheep at bay. This is the similarity between the two.
The form of city government favored by the biggest cities is the Option C: Mayor-Council. For instance, if we are talking about the state of Texas, then all the largest cities operate via Mayor-Council / Council-manager system, except for the Houston and El Paso.
I believe it was July 16, 1790
South America can be divided into three physical regions: mountains and highlands, river basins, and coastal plains. Mountains and coastal plains generally run in a north-south direction, while highlands and river basins generally run in an east-west direction.