# How to install and use the diff history userscript

A quick walkthrough of how to install and use Writ Keeper's commonHistory.js userscript, for educators who may find it a useful tool to evaluate student contributions

- Kind: Short
- Year: 2013
- Runtime: 1 min
- By: Sage Ross (WMF)
- Genres: History
- Archive: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:How_to_install_and_use_the_diff_history_userscript.webm)
- Licence or status: [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0) (as the archive states it)
- Credit: Sage Ross (WMF)
- Who can watch: Tweens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/commons/25528710?play=1)