Hank Green's stand-up comedy special 'Pissing Out Cancer,' which chronicles his experience with Hodgkin lymphoma, was released on the streaming service Dropout. This marked his entry into stand-up comedy and provided a humorous, yet candid, reflection on his health journey.

Hank Green's second novel, 'A Beautifully Foolish Endeavor,' was published. This science fiction novel is the sequel to 'An Absolutely Remarkable Thing' and also debuted as a New York Times Bestseller, solidifying Green's success as an author.

Hank Green's debut novel, 'An Absolutely Remarkable Thing,' was published. This marked his entry into the world of fiction writing and the beginning of his career as a novelist. The novel became a New York Times Bestseller.

The Brotherhood 2.0 project concluded, marking the end of a year where Hank and John Green communicated exclusively through video blogs. This project strengthened their bond and influenced their future collaborative work.

Hank Green and his brother John initiated the Brotherhood 2.0 project. This year-long endeavor involved the brothers communicating exclusively through daily video blogs, marking a significant shift in their communication and content creation style.

William Henry Green II, also known as Hank Green, was born in Birmingham, Alabama, to Mike and Sydney Green. This date marks the beginning of his life, which would later involve extensive work in online video, education, and entrepreneurship.