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22 hours ago · Hank Green. William Henry Green II (born May 5, 1980) is an American YouTuber, science communicator, novelist, and entrepreneur. He produces the YouTube channel Vlogbrothers with his older brother, author John Green, and hosts the educational YouTube channels Crash Course and SciShow. He has advocated for and organized social activism, created ...
- John Green
John Michael Green (born August 24, 1977) is an American...
- William Henry Green
Attribution: This article incorporates text from a...
- Crash Course (YouTube)
Crash Course (sometimes stylized as CrashCourse) is an...
- John Green
22 hours ago · David Michael Letterman (born April 12, 1947) is an American television host, comedian, writer and producer. He hosted late-night television talk shows for 33 years, beginning with the February 1, 1982, debut of Late Night with David Letterman on NBC and ending with the May 20, 2015, broadcast of Late Show with David Letterman on CBS .
