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.
The abolition of slavery occurred at different times in different countries, and sometimes occurred sequentially in more than one stage: for example, as abolition of the trade in slaves in a specific country, and then as abolition of slavery throughout empires. 1873: Slavery abolished in the Spanish colony of Puerto Rico: March 22. 2  1873: Treaty between Britain and Zanzibar and Madagascar to suppress slave trade. 3  1874: Britain abolishes slavery in the Gold Coast (now Ghana), following its annexation in 1874. 4  1877: Slavery had been abolished in Egypt in August 1877.