Hi! I open this thread to present our tool made with Dash: WikiChron.
Description: WikiChron is a web tool for the analysis and visualization of the evolution of wiki online communities. It uses processed data of the history dumps of mediawiki wikis, computes different metrics on this data and plot it in interactive graphs. It allows to compare different wikis in the same graphs.
Online application: http://wikichron.science
Github repo: https://github.com/Grasia/WikiChron
Blog post with more info: https://grasia.fdi.ucm.es/newmain/wikichron-intro/
Longer description in WikiPapers: http://wikipapers.referata.com/wiki/Wikichron
@chriddyp: If you can add it to the “Show and Tell” it would be great!