Theodosius was the last emperor to rule over both the eastern and the western halves of the Roman Empire. ... He also issued decrees that effectively made Orthodox Nicene Christianity the official state church of the Roman Empire
The correct answer is Upton Sinclair.
This American author became a national name with his book "The Jungle." This fiction novel was based on the real working experiences of individuals within the meat packing industry during the early 20th century. The disgusting habits/practices of this industry and the terrible working conditions described gained national attention, eventually leading to president Teddy Roosevelt passing the Meat Inspection Act of 1907.