# Glossary

We will collect the best definitions from prior publications.

The below timeline can also be viewed in interactive form [here](https://www.xrguild.org/timeline).

<figure><img src="https://2638478414-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FETLp7sBCPrP161DIcwQP%2Fuploads%2FOQ52qsJTAZnpV8UmImhT%2FScreenshot%202023-03-02%20at%204.48.21%20PM.png?alt=media&#x26;token=c3a34f6b-8847-424e-8616-49f810e46b94" alt=""><figcaption></figcaption></figure>

{% file src="<https://2638478414-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FETLp7sBCPrP161DIcwQP%2Fuploads%2F7f5kuQIiw8zqtAG5YRFN%2Ftimeline%20of%20mainstream%20XR%20terminology.pdf?alt=media&token=aed1b48b-3467-4fc1-af2b-24c9e8cb1489>" %}