Viola Roseboro’ isn’t well-known today, but she played a big behind-the-scenes role in the careers of a lot of American writers in the late 19th and early 20th centuries, shaping what’s thought of as the American literary canon.
Research:

Behind the Scenes Minis: Pacts and Facts
25:06

Louis Le Prince, the Missing Inventor of Motion Pictures
48:10

Catacombs of Rome
40:37