Julia is a now a well-established programming language. It was developed at MIT in the Applied Computing Group under the supervision of Prof. Alan Edelman. Its development started in 2009, and it was first presented publicly in February 2012. It has now reached its first production version: Julia v1.0 (published Aug 8, 2018), which means that stability is guaranteed for the complete duration of version 1. It is based on clear and solid principles, and its popularity is steadily increasing in the technical, data scientist, and high-performance computing arena.