# Hello World **Published by:** [Igor Brasil](https://paragraph.com/@igorbrasil-2/) **Published on:** 2021-10-15 **URL:** https://paragraph.com/@igorbrasil-2/hello-world ## Content Curiosity about the famous "Hello World”. Though the origins of Hello World remain somewhat unclear, its use as a test phrase is widely believed to have begun with Brian Kernigham's 1972 book, a tutorial Introduction to the Language B. In this text, the first known version of the program was used to illustrate external variables. ## Publication Information - [Igor Brasil](https://paragraph.com/@igorbrasil-2/): Publication homepage - [All Posts](https://paragraph.com/@igorbrasil-2/): More posts from this publication - [RSS Feed](https://api.paragraph.com/blogs/rss/@igorbrasil-2): Subscribe to updates - [Twitter](https://twitter.com/igorbrasilx): Follow on Twitter