During the 16th and 17th centuries slave traders began to raid the region as part of the expansion of the Saharan and Nile River slave routes. Their captives were slaved and shipped to the Mediterranean coast, Europe, Arabia, the Western Hemisphere, or to the slave ports and factories along the West and North Africa or South the Ubanqui and Congo rivers. In the mid 19th century, the Bobangi people became major slave traders and sold their captives to the Americas using the Ubangi river to reach the coast. During the 18th century Bandia-Nzakara peoples established the Bangassou Kingdom along the Ubangi River.
Which people were major slave traders in the 19th century?
Bobangi people

In 1988, with that preliminary phase of the project completed, Professor Skousen took over as editor and head of the FARMS Critical Text of the Book of Mormon Project and proceeded to gather still scattered fragments of the Original Manuscript of the Book of Mormon and to have advanced photographic techniques applied to obtain fine readings from otherwise unreadable pages and fragments. He also closely examined the Printer's Manuscript (owned by the Community of ChristRLDS Church in Independence, Missouri) for differences in types of ink or pencil, in order to determine when and by whom they were made. He also collated the various editions of the Book of Mormon down to the present to see what sorts of changes have been made through time.
On what did Skousen analyze ink and pencil remnants?
Printer's Manuscript

Unmarked vehicles are used primarily for sting operations or apprehending criminals without alerting them to their presence. Some police forces use unmarked or minimally marked cars for traffic law enforcement, since drivers slow down at the sight of marked police vehicles and unmarked vehicles make it easier for officers to catch speeders and traffic violators. This practice is controversial, with for example, New York State banning this practice in 1996 on the grounds that it endangered motorists who might be pulled over by people impersonating police officers.
When did New York State ban unmarked cars for traffic cops?
1996