What type of scholarly material can indicate upcoming current topics and includes unpublished reports, conference papers, and grant proposals?

I believe the answer is: Grey literature

Grey literatures contain researches that is  published for public and tend to be created for non-commerical publishers. Examples of grey literature are Government issued papers, policy statement, announcement pack, Local theses and dissertation, etc.

the answer is solomon northrup. he was a free-born african american, abolitionist and professional violinist that was drugged, kidnapped and sold as slave in 1841 and remained in captivity until 1853 where he regained his freedom with the of the then-governor of new york, washington hunt. he wrote and published his memoirs "twelve years a slave" in 1853, and in this text, he tells the story of his escape thru one of louisiana's swamps (the great pacoudrie swamp) in which he ended up covered in green slime from crossing the surface of the dead water.

c. have a great