Neptune has six known rings. Voyager 2's observations confirmed that these unusual rings are not uniform but have four thick regions (clumps of dust) called arcs. The rings are thought to be relatively young and short-lived. Neptune has 13 known moons, six of which were discovered by Voyager 2.
Why was slavery introduced to the English colonies? Slavery was introduced to the English colonies because people were  in need of labor to develop the lands. There was a lot of work to  be done, and there was little money toâ¦ pay for labor. The human  trade was a solution to the issue. Although, this was not a humane  practice.
Follow the timeline to learn more about the history of slavery in the United States, including the arrival of the first African slaves to America, the federal banishment of slave importation, and the abolishment of slavery in the United States. The first African slaves arrive in Virginia. Slavery is made illegal in the Northwest Territory. The U.S Constitution states that Congress may not ban the slave trade until 1808.