Why were the people of the kingdoms of buganda and rwanda primarily pastoralists?

The main reason why the people of the kingdoms of Buganda and Rwanda were primarily pastoralists is because the land they were on was unsuitable for large-scale farming. 

The embargo act of 1807  was a law passed by the united state congress and signed by president thomas jefferson on december 22,  1807. it prohibited american ships from trading in all foreign ports. in 1806, france passed a law that prohibited trade between neutral parties, like the u.s., and britain.