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3B1B Logo.svg
The channel name and logo reference the color of Grant's right eye, which has blue-brown sectoral heterochromia.[1] It also symbolizes the channel's visual approach to math.[‡ 1]
Personal information
BornGrant Sanderson
YouTube information
Years active2015–present
GenreMathematics, Education
Subscribers4.83 million[2]
Total views310 million[2]
Associated actsMinutePhysics, Numberphile, Smarter Every Day, Mark Rober
YouTube Silver Play Button 2.svg 100,000 subscribers 2016[3]
YouTube Gold Play Button 2.svg 1,000,000 subscribers 2018[3][‡ 2]
YouTube Diamond Play Button.svg 10,000,000 subscribers
YouTube Ruby Play Button 2.svg 50,000,000 subscribers
YouTube Red Diamond Play Button.svg 100,000,000 subscribers

Last updated: 27 November 2022

3Blue1Brown is a math YouTube channel created and run by Grant Sanderson.[4] The channel focuses on teaching higher mathematics from a visual perspective, and on the process of discovery and inquiry-based learning in mathematics, which Sanderson calls "inventing math".[5] As of November 2022, the channel has 4.83 million subscribers.[‡ 3]

Early life and education[edit]

Sanderson graduated from Stanford University in 2015 with a bachelor's degree in math.[‡ 4] He worked for Khan Academy from 2015 to 2016 as part of their content fellowship program, producing videos and articles about multivariable calculus, after which he started focusing his full attention on 3Blue1Brown.[‡ 4]


3Blue1Brown started as a personal programming project in early 2015. In a podcast of Showmakers, Sanderson explained that he wanted to practice his coding skills and decided to make a graphics library in Python, which eventually became the open-source project "Manim" (short for Mathematical Animation engine).[6] To have a goal for the project, he decided to create a video with the library and upload it to YouTube. On March 4, 2015, he uploaded his first video. He started to publish more videos and to improve the graphics tool.[6]

In 2020, Grant Sanderson became one of the creators and lecturers of the MIT course Introduction to Computational Thinking, together with Alan Edelman, David Sanders, James Schloss, and Benoit Forget.[7] The course uses the Julia programming language and Grant Sanderson's animations to explain various topics: convolutions, image processing, COVID-19 data visualization, epidemic modelling, ray tracing, introduction to climate modelling, ocean modelling, and the algorithms that lie behind these topics.[citation needed]


3Blue1Brown videos are themed around visualizing math, including pure math such as number theory and topology as well as more applied topics in computer science and physics.[citation needed] The visuals are predominantly generated by Manim, a Python animation library written by Sanderson, though occasionally visuals are drawn from other software such as macOS's Grapher application.[‡ 1]

The channel's videos have been featured in Popular Mechanics, ABC News, and Quanta Magazine.[8] Sanderson appeared on the podcasts of Numberphile, Lex Fridman, the Art of Problem Solving, Siraj Raval, and Showmakers.[9]

In February 2022, Sanderson determined that the best starting word on the game Wordle was CRANE.[10] Later on, he stated that the code he wrote to determine the best starting word had a bug in it.[11]


In January 2020, Sanderson delivered a talk in An Evening with Grant Sanderson, hosted by the Stanford Speakers Bureau.[12] Sanderson offered his perspective on engaging with math: instead of prioritizing usefulness, he emphasizes emotion, wonder and imagination. He aims to “bring life to math” with visuals, graphics, and animations.[13] In August 2021, Sanderson was one of several featured speakers at SIGGRAPH 2021.[14]

In November 2022, Sanderson delivered a keynote speech about "What can algorithms teach us about education?" at the 17th Dutch National Informatics Congress CelerIT hosted by Stichting Nationaal Informatica Congres(SNiC). [15] Sanders offered his perspective on how mathematics education should evolve in the future and related his findings with the way neural networks learn, he emphasizes the need for students to grasp concepts and understand them.


  1. ^ Grant Sanderson The Hope Diamond
  2. ^ a b "About 3Blue1Brown". YouTube.
  3. ^ a b "3Blue1Brown Monthly YouTube Statistics - Socialblade.com". socialblade.com. Retrieved 2018-09-28.
  4. ^ "3Blue1Brown". www.3blue1brown.com. Retrieved 2022-11-28.
  5. ^ What does it feel like to invent math?, retrieved 2022-11-28
  6. ^ a b "Grant Sanderson - 3Blue1Brown - Math Education & Programming Animation Software". Showmaker's. Jan 12, 2018. Archived from the original on 2019-07-12. Retrieved 2020-05-26.
  7. ^ "MIT 18.S191 Introduction to Computational Thinking Welcome".
  8. ^ Examples of press coverage:
  9. ^ List of podcast appearances:
  10. ^ "Wordle's best starting word found by YouTuber using math". Polygon. 7 February 2022.
  11. ^ "These are the best starting words to use to play Wordle, according to a math expert". USA Today.
  12. ^ Wei, Patricia (24 January 2020), 3Blue1Brown creator Grant Sanderson '15 talks engaging with math using stories and visuals
  13. ^ Kapadia, Huzefa, EP 159: 3Blue1Brown on How to Show the Natural Beauty of Mathematics
  14. ^ "Featured Speakers". SIGGRAPH 2021. Retrieved 15 October 2021.
  15. ^ What can algorithms teach us about education?, 30 November 2022, archived from the original on 1 December 2022

Primary sources

In the text these references are preceded by a double dagger (‡):

  1. ^ a b "FAQ/Contact". 3Blue1Brown. Retrieved 2020-07-29.
  2. ^ "Grant Sanderson on Twitter". Twitter. Retrieved 2018-09-01.
  3. ^ "3Blue1Brown - YouTube". www.youtube.com. Archived from the original on 2016-02-21. Retrieved 2021-10-09.
  4. ^ a b "About the author". Archived from the original on 2020-05-26. Retrieved 2020-05-26.

Further reading[edit]

  • Hershberger, Scott (2022). "The World of YouTube Math Communication". Notices of the American Mathematical Society. 69 (10): 1789–1793. doi:10.1090/noti2559. S2CID 252934359.

External links[edit]