A Visual Stimulation

Here's an impressive graph by Brendan Griffen showing how people have influenced each other through the ages. According to the creator, the data comes from anyone with a Wikipedia page that contains an "influenced by" heading. The colors are:

• Red – 19th/20th century philosophers
• Green – antiquity & enlightenment philosophers
• Pink – enlightenment authors
• Yellow – 19th/20th century authors (~fiction/philosophy)
• Orange – fiction authors
• Purple – comedians