This is an accepted version of this page William Henry Green II (born May 5, 1980) is an American YouTuber, science communicator, novelist, stand-up comedian, and entrepreneur.

He has advocated for and organized social activism, created and hosted a number of other YouTube channels and podcasts, released music albums, and amassed a large following on TikTok.

He is the co-creator of The Lizzie Bennet Diaries (2012–2013), an adaptation of Pride and Prejudice in the style of video blogs that was the first web series to win an Emmy.

Green is the founder of the environmental technology blog EcoGeek, which evolved into Complexly, an online video and audio production company of which he was the CEO until late 2023.

A later website, IHateI4.com, which was about Green's dislike for Interstate 4, a widely unpopular highway among Floridians, brought press from local news channels and the Orlando Sentinel.

[20] The Green brothers have been interviewed on PotterCast, and have been recurring keynote speakers at the Harry Potter fan convention LeakyCon.

[27] The channel features several educational courses based on the high school curriculum, and first launched with series focusing on Biology and World History.

According to John, the brothers see Crash Course "as an introduction, as a way to get kids excited about learning, not as an attempt to replace traditional classroom materials.

"[28] Their goal is to create "resources that allow for more valuable interaction in the classroom,"[29] with hopes that the channel will one day span the entire high school curriculum.

The channel has since expanded to welcome new hosts such as Craig Benzine, Phil Plait, and Emily Graslie into its roster, and has launched new courses such as Astronomy, Physics, and Philosophy.

[35] It has been awarded grants by Bill Gates' bgC3, and has struck a partnership with PBS Digital Studios to continue developing more series,[30] although the majority of its funding comes from viewer support via Patreon.

[37] The channel features a series of videos focused on scientific fields, including chemistry, physics, and biology, as well as interviews and trivia shows with experts.

It is hosted by Green and Brit Garner, who teach about the human brain and aim to provide clear and reputable psychology information.

[40] Green and SciShow were granted a national advertisement deal with YouTube that featured promotion on billboards and television commercials.

[45] The Lizzie Bennet Diaries was a web series created in 2012 by Green and Bernie Su and produced by Pemberley Digital.

In his Vlogbrothers video uploaded on December 7, 2012, Green featured Emily Graslie, a curatorial assistant at the Philip L. Wright Zoological Museum.

Due to her ease in front of the camera, enthusiasm, and fan comments, Graslie was offered her own YouTube channel, The Brain Scoop, as part of the Nerdfighter family.

[47] Following the success of Crash Course and SciShow, Green and his brother partnered with Mental Floss to produce and co-host a YouTube channel based on the magazine.

[49] The first series, The List Show, features John presenting several interesting facts and bits of trivia related to a central topic.

Green's first successful song was "Accio Deathly Hallows", which was featured on YouTube's front page preceding the release of the final Harry Potter book,[69] and has been viewed over two million times.

(2009); This Machine Pwns n00bs (2009); Ellen Hardcastle (2011), which was named for the winner of a 2010 charity raffle; and Incongruent (2014), with his new band, Hank Green and the Perfect Strangers.

[100] DFTBA Records (an initialism for "Don't Forget to Be Awesome") is an e-commerce merchandise company co-founded by Green and Alan Lastufka in 2008.

Originally a record label, its main focus was music generated by prominent YouTubers, including Green, Dave Days, Charlotte McDonnell, and Molly Lewis.

[103] Lastufka said the record label's goal was to provide a distribution network for talented artists of YouTube and to ensure their music reaches the "largest audience possible".

[109] After two years of producing Crash Course and SciShow through grants provided by YouTube, the Green brothers decided to find a more sustainable way to fund the projects.

[110] Among the platform's initial creators and channels were the Green brothers' Crash Course and SciShow, and YouTubers CGP Grey, MinutePhysics and Wheezy Waiter.

[113] Although the two companies joining forces had been discussed since their launch, they got serious only after Amazon announced a change in its payment services that would lead Subbable creators to lose subscribers.

Green served on the advisory board alongside Burnie Burns, Akilah Hughes, Casey Neistat, and Louise Pentland.

"[126] It attributed the shutdown to difficulty organizing without a physical presence, as well as a lack of interest, saying, "Creators with big audiences often don’t feel the need for support from a collective voice."

Creators such as Lindsay Ellis and Philosophy Tube had criticized the ICG as only raising awareness rather than being held accountable to help its members, but the guild said this was not the cause of its closure.