Agriculture is still the #1 industry in North Dakota's economy. The state typically leads the nation in over a dozen crops. Production agriculture is an important part of the North Dakota economy. 1  North Dakota continues to work to diversify its agricultural fabric by targeting the development of value added agriculture. Definition of Value Added Agriculture.
Brazil was the last American nation to abolish slavery, on 13 May, 1888. At the time Rio represented the largest urban concentration of slaves since the end of the Roman empire, more than 40% of the population, almost a complete city in irons.
Slavery was officially abolished in the United States in 1865 (by the enactment of the 13th Amendment to the Constitution), although many states abolished slavery for themselves at various dates between 1777 and 1864 and the transport of new slaves from Africa to the US was stopped as early as 1808.