格兰特·桑德森，Grant Sanderson graduated from Stanford University in 2015 with a bachelor's degree in math. He worked for Khan Academy from 2015 to 2016, producing videos about multivariable calculus.[3][4] After approximately one year, Sanderson quit to focus full-time on 3Blue1Brown. 3Blue1Brown started as a personal programming project in early 2015. In the podcast Showmakers Sanderson has explained 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 animations). To have a goal for the project, he decided to create a video with the library and uploaded it to YouTube. On March 4, 2015, he uploaded his first video. Eventually, he started to publish more videos and improve the graphics tool.